Question

Cos 30° Cos 45°- sin 30 sin 45°
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Answer 1

Answer:

answer for the given problem is given

Answer 2

Step-by-step explanation:

cos 30° cos 45° --- sin 30° sin 45°

√3 1 1 1

= ------- × ----- _ ----- × -----

2 √2 2 √2

√3 1

= ------- --- --------

2√2 2√2

√3 -- 1

= --------------

2√2

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