Please solve this question b, c, d
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If x=ytanA
LHS=xsinA+ycosA
=ytanAsinA+ycosA
=y[sin^2A+cos^2A]/cosA
=y/cosA=ysecA
RHS=sq rt(x^2+y^2)
=sq rt((ytanA)^2+y^2)
=sq rt(y^2(tan^2A+1))
=ysecA=LHS
LHS=xsinA+ycosA
=ytanAsinA+ycosA
=y[sin^2A+cos^2A]/cosA
=y/cosA=ysecA
RHS=sq rt(x^2+y^2)
=sq rt((ytanA)^2+y^2)
=sq rt(y^2(tan^2A+1))
=ysecA=LHS
Rojanshrestha:
Thanks
But were are other two answers
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