# alg/trig

4,413 results, page 7

2tanx = 3=0
2. ### trig

f(x)= 2sec(x-3.14/4)-1
3. ### trig

y=1/4 cos (2/3 x +3 pi )

sin(pi/3)
5. ### trig

solve: 1/m=m-34/2m^2
6. ### trig

simplify (3x^2-5x+4)-(5x^2+7x-7)

1/4tan(2x)
8. ### Trig

Solve: (2/y+2)+(3/y)=(-y/y+2)
9. ### trig

y=7sin20degrees/5

50 feet
11. ### Trig

Solve 5^2x -4(5^x)=12

8cos6xsin6x

cos(3x)=-1
14. ### Trig

4sin^(2)x-3=0
15. ### trig

What is cosx=1/2?

1-2sin^2(2x)
17. ### algebra 2/trig

x+5 1 ------- - 1= ------- x^2-2x x^2-2x
18. ### trig

proof that (m+n)^2/3+(m-n)^2/3=2a^2/3
19. ### trig

y= 3 cos(x+pi)-3
20. ### Trig

cos 13 pi = ?

sin^4x
22. ### pre-alg

What is the scale that you will use for your scale drawing? I'm not understanding the question? is it asking what number i will use? or is it asking what type of graph type deal I will use? (My scale was 115 x 160)
23. ### Alg 2

The first term of a geometric sequence is 25, and the fourth term is 1\5. (a) Find the common ratio r. r = Find the fifth term. a5 = (b) Find the partial sum of the first eight terms. S8 =
24. ### College Alg

A couple plans to save for their child's college education. What principal must be deposited by the parents when their child is born in order to have \$41,000 when the child reaches the age of 18? Assume the money earns 9% interest, compounded quarterly. (Round your answer to ...
25. ### Alg-Substitution (check plz)

k well i had to use substitution to find the point of intersection for these 2 equations x-y=10 3x+y=11 i chose to substitute y in the first equation my final answer was (-1/2 , 5) can someone clarify this, and if it's wrong, where'd i make a mistake? In the first equation, y...
26. ### trig

We are doing trig identities in school. I need help with these five: 1.1+sinx/1-sinx=cscx+1/cscx-1 2.tanx+sinx/1+cosx=tanx 3.sec^2x/sin^2x=1/sin^2x+1/cos^2x 4.tan^2x/1+tan^2x=1-cos^2x 5.sinx-sin^3x/cos^3x=tanx
27. ### Alg I

Three towns A, B, and C lie on a straight road in that order.The distance from B to C is 6 miles more than twice the distance from A to B.The distance from A to C is 2 miles more than four times the distance from A to B.What is the distance from A to B?

tanx=cotx
29. ### trig

what is the perimeter of a circle
30. ### trig

evaluate log3 27
31. ### math algebre2 and trig

5>4b+9>17 - -
32. ### trig

Graph y=-sin2(x-(3.14/4))
33. ### Trig

what is 2 pi over 1/5 reduce to?
34. ### trig

What is the projection of (2,6) onto (-1,5)?
35. ### trig

||v|| = 8 u = <5, 6> find the vector
36. ### trig

sin^2è + 2sinè +1 =0
37. ### trig

answer of 17(3/5 * 2/3 - 1 divided by 17/8)
38. ### ALGEBRA 2 W/TRIG

What is the slope for y=3/4x+1?
39. ### trig

sinL=6/7 L(alfa)=?

4=log[7]2401
41. ### trig

graphs of trignometry
42. ### trig

what is the value of the discriminant x^2-9
43. ### Trig

sin^2x/sec^2x-1
44. ### trig

4cos(2x)+2cos(x)+3=0
45. ### trig

3sin(2x)-2cos(x)=0
46. ### trig

2cos(theda)-"2=0
47. ### trig

sin^-1(sin5pi/6)
48. ### trig

How do you solve csc2x + 1 = 0
49. ### trig

y = sin (3x-2pi)

2cos^2+sin=1
51. ### trig

what is the reference angle for 17 pi/12?
52. ### trig

log4+log(x-7)=2
53. ### trig

log(x-15)-2=-logx
54. ### trig

Cos(2x+30)-Sin(3x-20)
55. ### trig

Graph y=-2sin(x/2-pi/2)+3
56. ### trig

evaluate cos 12*pi
57. ### Trig

cos(-11pi/12)

Sec (23π/6)
59. ### trig

SinA =0.5 cosA=?

sin/tan = ?
61. ### Trig

The radius of: (x+2)^2 + (y-3)^2 =9 is 3 is this correct?

63. ### trig

5pi/7 what quadrant is it in???
64. ### trig

tan-5n over 3
65. ### trig

Graph f(x)= second(2x+3.14/4)
66. ### trig

how to do root3 value
67. ### trig and algerba

6+7(t - 1) = 5(t + 7) + 8 what does t equal
68. ### Trig

How do you do this? 1-sin^2x/csc^2 x-1
69. ### trig

5sin(2x)+4cos(x)+0
70. ### trig

5sin(2x)+4cos(x)=0
71. ### trig

2sin^2x-1=0[0,2pi)
72. ### Trig

Why does 11.4(7pi/18)=133pi/30 ?
73. ### trig

what is the amplitude of f(X)=-6sin(3x-7)
74. ### Trig

What is the supplement of 3pi/5?
75. ### Trig

Find the supplement of pi/6

cos(π-x)=
77. ### trig

U=5i+11j and V=2i-3j, find 2U-7U
78. ### math trig

ln(2x-5)= 4 how do i this problem? thanks!
79. ### trig.

How is it that sin90 is negative?
80. ### trig

what is the value of sin 70
81. ### trig

Solve for x please? x/x+3 - 1/x+2 = x/2x+4

8/2+√6
83. ### trig

cos^2 A/ 1+sin A
84. ### TRIG

Sinxtanx = sec x
85. ### trig.

8x^3+4x^2-4x solution sets
86. ### trig

If cot x = .78, what is tan x?
87. ### trig

solve tan2x = -28/45 Thank you
88. ### trig

10sinB+5 = sinB+5
89. ### trig

cos è = 0.9659 A = ? H = 20
90. ### Trig

Sin^2 b(1 +cot^2 b) =1
91. ### trig

Sinxcosy(cotxtany-1)
92. ### trig

Sinxcosy(cotxtany-1)
93. ### Trig

(x+1)(x-4) is greater than or equal to (x-2)^2
94. ### trig

write a formula f*g*h when f(x)=x+1, g(x)=3x, h(x)=4-x
95. ### trig

sin 60 ka man
96. ### Trig

If f(x)=cos^2x and g(x)=sin^2x, what is (f+g)(pi/15)

three forces
98. ### Pre-Calc/Trig...

If f(x)=1/(x+2), what is f(3+h)? A. 1/(3+h) B. 1/(h+5) C. 1/(x+2)(3+h) D. (3+h)(x+2)
99. ### trig

from a top of a hill
100. ### trig

sin 2x-cot x=