answer this question 29 and 30
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R. H. S= tanΦ\√1 + tan^Φ
=tanΦ\√1+sin^2Φ/cos^2Φ
=(sinΦ\cosΦ*cosΦ) /
√cos^2Φ+sin^2Φ
=sinΦ
=L. H. S
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