1. The value of 4sin2A+4cos2A-1 is_____________
a) 2 b) 3 c) 4
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31
question◆
4 sin2A + 4 cos2A - 1
to find value of this●
⋆ANSWER☟
=> 4 sin2A + 4cos2A - 1
=> 4{ sin2A + cos2A } - 1
=> 4×1 - 1
=> 3 answer
Answered by
1
(b) 3
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