​​PLEASE ANSWER CORRECTLY
​​PLEASE ANSWER CORRECTLY 2. 3. 4. tan3 2.rsec 2.råc — sec3 2x + 3 sec 2x sec 2x—3sec2x sec 2x—3sec2x None of these O O O

Dear Student ,
 
Please find below the solution to the asked query :

Let I= tan32x sec 2x dx= tan22x tan 2x sec 2x dx= sec22x - 1 tan 2x sec 2x dxPut sec 2x =t2 sec 2x tan 2x dx =dtsec 2x tan 2x dx =dt2Now,I= t2-1 dt2=12 t33-t+c=16 t3-3t+c=16 sec32x -3 sec 2x + c    ANS...
 
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