Question

If cos alfa =-3/5,sinbita=7/25,alfa/2less than alfa less than pie and 0lessthan bita lessthan pie /2 then find the values of sin alfa/bita and tan alfa/bita​

Answer 1

Answer:

If cos(α+β)=45;sin(α-β)=513 and α,β lie between 0&π4 then find the value of tan2α