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Question

Given that sin A = 12 and cos B = 12, then the value of (A + B) is ____.

(Here, 0<A+B90)


A

30

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B

45

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C

75

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D

15

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Solution

The correct option is C

75


Here, 0<A+B90

sin A=12 (given)

sin A=sin 30

A=30

cos B=12

cos B=cos 45

B=45

Thus, A + B = 75.


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