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Question
The value of sin2θ + `1/(1 + tan^2 theta)` is equal to
Options
tan2θ
1
cot2θ
0
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Solution
1
Explanation;
Hint:
sin2θ + `1/(1 + tan^2 theta) = sin^2 theta + 1/(sec^2 theta)`
= sin2θ + cos2θ
= 1
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