Question

$the \: values \: of \: sin \: ( \alpha + \beta ) \: and \: \tan( \alpha + \beta \: ) \cos( \alpha + \beta ) \: are$​

Answer 1

Answer:

sin(α+β)=sinα•cosβ+cosα•sinβ

tan(α+β)=tanα+tanβ/1-tanα•tanβ

cos(α+β)=cosα•cosβ-sinα•sinβ