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Evaluating trigonometric functions
Page 2
Questions (99)
wha tis the exact value of sin 9pi/4
3 answers
asked by
kia
1,457 views
7. Evaluate sin[sin^-1(-1/2)].
a. 1/2 b. ð /6 c. -1/2 d. - ð /6 8. Evaluate cos[tan^-1(5/12)]. a. 12/13 b. 12/5 c. 5/12 d. 5/13
1 answer
asked by
Claire
447 views
Can someone check my answers please? Thank you!
If tan x = 3/5, evaluate: 1) tan 2x 2) tan 3x ==> For #1, I got 15/8; for #2, I
3 answers
asked by
Emily
435 views
how do i evaluate the function csc 11 pie/4 without using a calculator
1 answer
asked by
anonymous
386 views
evaluate sin(-5pi/9)
1 answer
asked by
gion
387 views
How do I do these type of problems
find the exact value. Do not use a calculator cos 7pi
1 answer
asked by
Calculus (trig stuff)
474 views
hoW to evaluate these if cos=-12/13, A in Q II and cot B =5/12, B in Q III
A) Sin^2 A (the sign ^ is power of)
1 answer
asked by
cheery
302 views
how do u do
evaluateL cos135
1 answer
asked by
nadine
396 views
write down the value (corect to three decimal places of:-
a) sin64= b) tan21= c) cos67.4=
4 answers
asked by
jonny
1,066 views
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help
sin (-pi/12)
5 answers
asked by
Bradley
535 views
find the exact value for each function
tan pi/3 cos pi/4
1 answer
asked by
Nate
460 views
Find cos theta if sin theta = 3/5 and 90 degrees<theta<180 degrees.
Is the answer -sqrt34/5? Appreciate you checking my anwers.
2 answers
asked by
Lucy
1,150 views
How do you find the cotangent of an angle?
My problem is: Find the exact value of cot(-315degrees). I don't know how to do this.
1 answer
asked by
Lucy
384 views
If x and y are in the interval (0,π/12) and sin x = 3/5 and cos y = 12/13, evaluate:
sin (x-y) I started by trying to find the
3 answers
asked by
Anonymous
671 views
How do I do this by sketching a triangle.
sin( arcsin(1/2) + arccos(1/2) ) Thanks. let's start with arcsin(1/2) draw a right
1 answer
asked by
Jen
592 views
Please review and tell me if i did something wrong.
Find the following functions correct to five decimal places: a. sin 22degrees
5 answers
asked by
Anon
1,757 views
Pls teach me how to evaluate sin 375° without using calculator
4 answers
asked by
Favour
1,502 views
Evaluate
arctan(cot10Pi/9) sec(arccos(-1/6) csc(arcsec(5/3) sin(2 arccos(sqrt5/5)
2 answers
asked by
Liv
1,104 views
using the figure, establish the value of function y=sin0 when 0=pi/3
1 answer
asked anonymously
16 views
Determine the values of sin, cos, tan, csc, sec and cot at (-3, -3) on the terminal arm of an angle in standard position
2. If
2 answers
asked by
steph
801 views
evaluate exactly(without calculator):
1. sec(pi/4) 2.3sin4pi 3. tan240(degrees)
3 answers
asked by
Amy
358 views
give f(x) = sin x, evaluate the function at x = 13π/2.
0 1/2 1 -1
1 answer
asked anonymously
23 views
Evaluate cot -220o
Round your answer to the nearest hundredth. A. -1.31 B. 1.56 C. -1.19 D. -0.84
3 answers
asked by
tiana
704 views
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help
cos (-5pi/12)
2 answers
asked by
Carmen
635 views
Using the figure, establish the value of the function y=sinθ when θ=π3 .
(1 point) Responses 12 Start Fraction 1 over 2 End
1 answer
asked anonymously
102 views
are the answers correct?
evaluate the value of the following trig functions 7. sec 54° 23’ answer: -1.051 8. cos 36° 10’
2 answers
asked by
anonymous
535 views
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help
cos (4pi/3 –
3 answers
asked by
Carmen
523 views
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help
sin (-pi/12)
2 answers
asked by
Bradley
517 views
what would tan be for -1^(9)to the nearest degree? and what would sin -1^(0.62) be to the nearest degree?
3 answers
asked by
Gary
484 views
4. Evaluate the following, give exact value when possible.
a. sec(225) = 2.72 b. sin(-15) – 0.065 c. sin(75) = -0.39 Are these
2 answers
asked by
Chelsea
501 views
State the exact values of the following.
cos(360 degrees) sec(7pi/2) tan(-9pi/2) How do I do these? Thanks!
1 answer
asked by
Jillian
454 views
cos 23pi/12
i tried doing it and i got 0.994.. is that right? can someone explain how to do this to me? thanks!
3 answers
asked by
unknown
443 views
Calculate the value of the following, without using a calculator, leaving answers, where necessary, in simplified surd form:
(a).
3 answers
asked by
Gilbert
444 views
Which of the following has the greatest value?(1 point)
Responses sin π sin π sin 2π sin 2π sin π2 sin π2 sin3π2
1 answer
asked anonymously
58 views
find the cos 3π/4 (1 point) Responses −2√2 negative the fraction with numerator square root of 2 and denominator 2 2√2
1 answer
asked anonymously
37 views
If 0<theta<90 and tan theta= (square root 3)/2, find cos theta?
tan(t) =�ã3 /2; cos(t) = 1/�ã(1+(tant)^2)= 1/�ã(1+3/4) =
1 answer
asked by
House
437 views
Use an appropriate identity to find the exact value of the expression. Cos(-7pi/12)
1 answer
asked anonymously
32 views
Use an appropriate identity to find the exact value cos(-7pi/12)
3 answers
asked anonymously
32 views
how does cos(pi/4)^2 becomes (1/square root of 2)^2?
1 answer
asked anonymously
9 views
cos(62)=4/x
1 answer
asked by
B
13 views
Find the exact values of cos 150º and sin 150º. (1 point) Responses Cos = –, sin = Cos = – Image with alt text: one-half ,
1 answer
asked anonymously
6 views
Find the exact values of cos (3pi/4 radians) and sin (3pi/4 radians).
1 answer
asked anonymously
9 views
tan (-11pi/3)
1 answer
asked anonymously
5 views
tan (-11pi/6)
1 answer
asked anonymously
5 views
Which number is represented by point A?
A 2pi B 2sqrt(15) C sqrt(10) sqrt(20)
1 answer
asked by
Elijah Ford
6 views
Evaluate sin 180°. Round your answers to the nearest hundredth if necessary.(1 point) Responses 0 0 -0.5 -0.5 -1.1 -1.1 0.5
4 answers
asked anonymously
9 views
Evaluate cot 290º. Round your answer to the nearest hundredth.
1 answer
asked anonymously
4 views
Evaluate sin ( 2 cos ^-1 sqrt 2/2 )
1 answer
asked by
No
1 view
Find the exact values of cos 210° and sin 210°
1 answer
asked by
anonymous
2 views
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Parent Categories (3)
Trigonometric Functions
Trigonometry
Unit Circle