मराठी

Revision: त्रिकोणमिती Mathematics 2 - Geometry [गणित २ - भूमिती] SSC (Marathi Medium) 10th Standard Board Exam [इयत्ता १० वी] Maharashtra State Board

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Theorems and Laws [1]

cotθ + tanθ = cosecθ × secθ हे सिद्ध करण्यासाठी खालील कृती पूर्ण करा.

कृती:

डावी बाजू = cotθ + tanθ

= `costheta/sintheta + square/costheta`

= `(square + sin^2theta)/(sintheta xx costheta)`

= `1/(sintheta xx costheta)`     ......`because square`

= `1/sintheta xx 1/costheta`

= `square xx sectheta`

डावी बाजू = उजवी बाजू

डावी बाजू = cotθ + tanθ

= `(costheta)/sintheta + bbsintheta/costheta`

= `(bb(cos^2theta) + sin^2theta)/(sintheta xx costheta)`

= `1/(sintheta xx costheta)`     .....∵ [sin2θ + cos2θ = 1]

= `1/sintheta xx 1/(costheta)`

= cosecθ × secθ

डावी बाजू = उजवी बाजू.

Important Questions [12]

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