Question

Determine the value of cos60 cos30 + sin60 sin30​

Answer 1

Step-by-step explanation:

Hope u understand!....

Answer 2

Answer:

$\huge{\boxed{\rm{\red{Answer=√3/2}}}}$

Step-by-step explanation:

Given that:-

Cos60 cos30+ sin60 sin30

This is in the form of CosACosB+SinASinB

Here A=60° and B=30°

CosACosB+SinASinB=Cos(A-B)

=>Cos60 cos30+ sin60 sin30

=>Cos(60°-30°)

=>Cos 30°

=>√3/2

the value of Cos60 cos30+ sin60 sin30=√3/2