Friday

March 6, 2015

March 6, 2015

Posted by **Nate** on Friday, May 16, 2008 at 5:08pm.

tan pi/3

cos pi/4

- trig -
**Reiny**, Friday, May 16, 2008 at 5:23pmpi/3 radians = 60º

so let's look at the 30,60, 90º right-angled triangle

the ratio of its sides is 1:√3:2

tan 60º = 1/√3

so tan pi/3 = 1/√3

in the same way pi/4 = 45º

consider the 45,45,90 triangle.

the ratio of its sides is 1:1:√2

take it from there.

**Answer this Question**

**Related Questions**

trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...

trig - How do you find the exact value of an inverse function geometrically. ie...

Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...

Trig - 1. Establish the identity: sin(theta+3pi/2)=-cos(theta) 2. Find the exact...

precal - use the given info. to find the exact value of the trig function. csc u...

TRIG/ALGEBRA - 1) Find the exact value. Use a sum or difference identity. tan (-...

Trig - Can someone check my answers so far? 1. Find the exact value of tan(-3ð) ...

algebra 1 - Find exact value of each trigometric function. tan 60 sin225 cos 135...

trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...

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