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UIIS P and Q ou cl Is čentre. Draw tangents to the circlesin θ-cos θ + 1sin θ + cos θ-1-sec θ-tan θ29. Prove that30. If the mu l' |
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Answer» LHS = (sinA-cosA+1)/(sinA+cos-1) = (1 + sinA) (1 - sinA)/cos A(1 - sinA) = 1 - sin2A/cos A(1 - sinA) = cos2A/cos A(1 - sinA) = cosA/(1 - sinA) = 1/ (1/cosA - sinA/cosA) = 1/(secA - tanA) = RHS Hence Proved |
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