Question

Cos 60° X cos 45° + sin 45° x sin 30°​

Answer 1

Answer:

sorry I am studying in class 8 so l don't know!!!!

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Answer 2

Answer:

1/√2

Step-by-step explanation:

cos 60 x cos 45 + sin 45 x sin 30

(1/2 x 1/√2) + (1/√2 x 1/2)

1/2√2 + 1/2√2

2/2√2

= 1/√2