Question
( int sec ^{2} theta+operatorname{cosec}^{2} theta=sqrt{-1+tan ^{2}} )
( =sqrt{1+tan ^{2} theta+1+cot ^{2} theta} )
( =sqrt{tan ^{2} theta+cot ^{2} v+2} cdot therefore tan theta cdot cot theta=1 )
( Rightarrow int tan ^{2} theta+cot ^{2} theta+frac{1}{2+cos theta cdot cot theta} )
( Rightarrow int(tan theta+cot theta)^{2} )
( =tan theta+cot theta )
Noved.

Date Page dan O + Cato carec 20 D N seco a
Solution
