Math, asked by prasadbarireeta, 2 months ago

Evaluate the following
1) cos 30 cos 45 - sin 30 sin 45

Answers

Answered by princetheking18

4

Step-by-step explanation:

√3/2 × 1/√2 - 1/2 × 1/√2

=> √3 ÷ 2√2 - 1 ÷ 2√2

=> √3 - 1 / 2√2

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