Exercise problems IV — task. Mathematics CBSE, Class 10.

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Choose the correct option. Justify your choice.

i. \((sec A + tan A) (1 – sin A)\)

\(sec A\)
\(cos A\)
\(sin A\)
\(cosec A\)

ii. \(\frac{1 + tan^2A}{1 + cot^2A}\)

\(-1\)
\(cot^2 A\)
\(sec ^2 A\)
\(tan^2 A\)

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