Question

2.
3
cos 45 cos 60* -sin 45 sin 60%
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Answer 1

Answer

1/√2 * 1/2 - 1/√2 * √3/2

⇒1/2√2 - √3/2√2

⇒ 1-√3/2√2

⇒ ( 1-√3 )* 2√2 / 2√2*2√2

⇒ (2√2 - 2√6) / 8

Answer 2

Step-by-step explanation:

1÷root2+×root3÷2-1÷root2×root3÷2

so both will cancel.answer is 0.

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