inades-17spc x Blackboard Leam x G even add identtes x Da Notes-17sp MAT xYD unt

Question

inades-17spc x Blackboard Leam x G even add identtes x Da Notes-17sp MAT xYD unteedrotebe C D wwwwebassign.net/web/Student/Assignment-Responses/submit?dep 15247373 Blackboard D CCAC ecentral webmail Y Naruto D studert Home D myccac edu WA WebAssign O 2/5 points l Previous Answers SPreCalc6 7 1035 Verify the identity. (-a) a) tan (-a) sec a Use the Even-Odd Identities to rewrite the expression. cos (-a) sin(-a) tan a) cos a Use a Reciprocal Identity to rewrite the expression in terms of sine and cosine. COS Use a Pythagorean Identity to rewrite the expression in terms of a single function, and then simplify. COS Seca Need Help? watch ii to a Tutor Talk

Explanation / Answer

cos(-a) + sin(-a)tan(-a) = seca

LHS : cosa + sina*tana

cosa + sina(sina/cosa)

(cosa*cosa + sina*sina)/cosa

= (cos^2a + sin^2a)/cosa

= 1/cosa

= seca

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