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Question

[sinαcosαsinβcosαsinαcosβ] is dependent of

A
β
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B
αandβ
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C
α
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D
neitherαnorβ
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Solution

The correct option is B αandβ
[sinαcosαsinβcosαsinαcosβ]
sinα(cosβsinα)cosα(cosβ+cosα)+sinβ(sinα+cosα)
cos(α+β)+sin(α+β)1
Option D dependen on both α and β

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