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प्रश्न
Choose the correct alternative:
Which is not correct formula?
विकल्प
1 + tan2θ = sec2θ
1 + sec2θ = tan2θ
cosec2θ − cot2θ = 1
sin2θ + cos2θ = 1
उत्तर
1 + sec2θ = tan2θ
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Activity:
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