Quantitative Aptitude Trigonometry

Considering the identities, choose the correct option

(1) sin2θ + cos2θ  = 1

(2) tan2θ + sec2θ  = 1

(3) cosec2θ – cot2θ  = 1

1
Only (1) and (2) are correct
2
Only (1) and (3) are correct
3
Only (2) and (3) are correct
4
All (1), (2) and 3 are correct

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