Sin(a-b)+2cosasinb, если sin(a+b)=0.17

Question

Sin(a-b)+2cosasinb, если sin(a+b)=0.17

Answer 1

sin(a-b)+2cosasinb=sinacosb-sinbcosa+2cosasinb=sinacosb+sinbcosa=sin(a+b)=0.17