Posted by **Ram** on Friday, October 21, 2011 at 2:29pm.

Find value of tan75/2

- trig -
**Steve**, Friday, October 21, 2011 at 3:36pm
If you mean tan(75/2), then

sin^{2}15 = (1+cos30)/2 = (2-√3)/4

cos^{2}15 = (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 -
**Ramesh kumar Prasad Rajak Raj.Indu**, Thursday, August 27, 2015 at 12:06pm
15root over3

- trig -
**Slok **, Monday, November 23, 2015 at 10:39am
Bindu (1,4)tatha (5,8)ke madh bindu ko mulbindu se milane vali rekh ka samikard geyt karo

- MATH trig -
**AJAY **, Sunday, July 17, 2016 at 10:48pm

## Answer This Question

## Related Questions

- trigonometry - tan75/2 degree
- trig - use the unit circle to find the exact value for all the trig functions of...
- trig - if (-12,5) is a pointon the terminal side of an angel 0 find the exact ...
- trig - find each value by referring to the graphs of the trig functions. 1. sec ...
- trig - For the following expression, find the value of y that corresponds to ...
- trig/pre -calc - hello, i don't quite understand how to do this type of problem...
- trig - please help me. use trig. identities to find the exact value. tan 25° + ...
- trig - please help me. use trig. identities to find the exact value. tan 25° + ...
- trig - what is the exact value of 7pi for all trig func.?
- trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...

More Related Questions