Question

Complete the identity..

Answer 1

so sin(a+b) = sinacosb + cosbsina

can you do it now ?

Answer 2

what is the value of that b sign ?

Answer 3

a - alpha , b - beta

Answer 4

its not on my calc .. confused by that one

Answer 5

\[\sin(\alpha\ + \beta\ )= \sin(\alpha\ )\cos(\beta\ ) + \sin(\beta\ )\cos(\alpha\ )\]

Answer 6

this is an identity.. can you solve your problem using this now ?

Answer 7

tan α + tan β .... or do i have those reverse ?

Answer 8

correct