Answered

Can anyone help???

simplify: cos(126°)cos(36°) + sin(126°)sin(36°)

Sagot :

Everest2017id
cos A cos B + sin  A sin B  =  cos (A - B)

given expression is = cos (126 - 36 ) = cos 90  = 0
A-b is the answer if u know how to simplify numbers similar to that

ID Other Questions