# trig

posted by .

Find value of tan75/2

• trig -

If you mean tan(75/2), then

sin215 = (1+cos30)/2 = (2-√3)/4
cos215 = (1-cos30)/2 = (2+√3)/4

sin75 = cos15
cos75 = sin15

tan 75/2 = (1-cos75)/sin75
= (1 - √(2-√3)/4)/√((2+√3)/4)
= (2 - √(2 - √3))/√(2 + √3)
= 0.7673

• LOKMANYA INTER COLLEGE JANKINAGAR MATHS -

15root over3

• trig -

Bindu (1,4)tatha (5,8)ke madh bindu ko mulbindu se milane vali rekh ka samikard geyt karo

• MATH trig -

• MATH -

• Math -

(Root2-root3)(root2+1)

• trig -

15-8√3

• trig -

Tan75/2

• MATH -

75/2

• trig -

Tan75/2=?

## Similar Questions

1. ### trig/pre -calc

hello, i don't quite understand how to do this type of problem: 1. find the exact value of sin (pi/3). even more confusing is 2. find the exact value of csc^-1 (1). i would appreciate any kind of help! thank you!
2. ### trig

find each value by referring to the graphs of the trig functions. 1. sec 4 pi...i got 0 Find the values for theta for which each equation is true. csc (theta)=1 i got pi over 2 +2 pi n
3. ### trig

use the unit circle to find the exact value for all the trig functions of è=2ð/3.
4. ### trig

please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°
5. ### trig

For the following expression, find the value of y that corresponds to each value of x, then write your results as ordered pairs (x,y). y=7cos(x-pi/6) for x=pi/6, pi/3, 2pi/3, pi, 7pi/6
6. ### trig

if (-12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0
7. ### trigonometry

tan75/2 degree

tan75\2