Ive been given very little notes from my teahcer, and cant do these. looked online, but its was no use.(adsbygoogle = window.adsbygoogle || []).push({});

1. Using the identities to find the vales of each expression (no calc.)

(i) sin t = 15/17 , cos t = 8/17 find remaining trig functions

(ii) sec^2 Pie/12 - tan^2 Pie/12

2. Find exact value

(i) tan* = -3 , cos *>0

3.Use reference angles to find exact value (no calc.)

(i) cos 225*

(ii) sin ( -pie/6 )

Thanks a bunch!

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# Trig help

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