Teaching HTET PGT Level 3 - 2024 Mock Test Mathematics Trigonometry Trigonometric Identities

What is \(\rm \frac{1+tan^2\theta}{1+cot^2\theta}-\left(\frac{1-tan\theta}{1-cot\theta}\right)^2\)equal to?

1
0
2
1
3
2 tanθ
4
2 cotθ
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