Please tell me these 2 questions marked with yellow color
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delhi
and u
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L.H.S
sec A(1- sin A)(sec A + tan A)
=1/cosA(1- Sin A)(1/cos A+ sin A/ cos A)
=(1- Sin A)/cos A)(1+ sin A /Cos A)
=(1- Sin A)(1- Sin A)/cos A × cos A
(1-Sin^2 A)/Cos^2 A
=1
therefore,L.H.S=R.H.S
=cos^2 A/cos^2 A
sec A(1- sin A)(sec A + tan A)
=1/cosA(1- Sin A)(1/cos A+ sin A/ cos A)
=(1- Sin A)/cos A)(1+ sin A /Cos A)
=(1- Sin A)(1- Sin A)/cos A × cos A
(1-Sin^2 A)/Cos^2 A
=1
therefore,L.H.S=R.H.S
=cos^2 A/cos^2 A
Sorry I want to ask Q53
ok no problem
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