prove all questions plzzz urgent
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For question 1
(cosec a- cot a)2=1-cos a/1+cos a
RHS
=1- cos a/1+cos a
=1- cos a/1+cos a ×1-cos a/ 1- cos a
=(1-cosa)(1-cosa)/(1+cosa)(1-cosa)
=(1-cosa)2/1-cos2a
=(1-cosa)2/sin2a
=(1-cos/sina)2
=(1/sina-cosa/sina)2
=(cosec-cot)2
(cosec a- cot a)2=1-cos a/1+cos a
RHS
=1- cos a/1+cos a
=1- cos a/1+cos a ×1-cos a/ 1- cos a
=(1-cosa)(1-cosa)/(1+cosa)(1-cosa)
=(1-cosa)2/1-cos2a
=(1-cosa)2/sin2a
=(1-cos/sina)2
=(1/sina-cosa/sina)2
=(cosec-cot)2
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