Friday

March 6, 2015

March 6, 2015

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

- trig -
**Steve**, Friday, October 21, 2011 at 3:36pmIf 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

**Answer this Question**

**Related Questions**

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...

trig - For the function -2sin(x-(pi/3)) between x = 0 and x = 2 : (6 marks) For ...