Video solution will be uploaded soon.
Let for f(x)=7 \tan ^8 x+7 \tan ^6 x-3 \tan ^4 x-3 \tan ^2 x, \quad \mathrmI_1=∫_0^π / 4 f(x) \mathrmd x and \mathrmI_2=∫_0^π / 4 x f(x) \mathrmd x. Then 7 \mathrmI_1+12 \mathrmI_2 is equal to : | Watch the step-by-step video solution for this NIMCET PYQ.