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OSWAL PUBLICATION-INTRODUCTION TO TRIGONOMETRY AND TRIGONOMETRIC IDENTITIES -NCERT EXEMPLAR (Exercise - 8.4)
- If cosectheta + cottheta=p, then cos theta=
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- Prove that sqrt( sec^(2) theta + "cosec"^(2) theta )= tan theta + c...
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- If 1+sin^(2)theta = 3sinthetacostheta, then prove that tantheta=1 or 1...
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- If sintheta + 2 costheta=1,then 2sintheta-costheta=
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- if tantheta+sectheta=l then prove that sectheta=(l^2+1)/(2l)
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- If sintheta+costheta=pandsectheta+"cosec"theta=q then prove that q(p^(...
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- If asintheta+bcostheta=c then prove that acostheta-bsintheta=sqrt(a^2+...
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- prove that(sec theta-tan theta-1)/(sec theta+tan theta-1)=tan theta-se...
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