Mark the correct alternative in the following:
If tan (π/4 + x) + tan (π/4 – x) = a, then tan² (π /4 + x) + tan² (π /4 – x) =

= a² - 2

Question

Mark the correct alternative in the following: If tan (π/4 + x) + tan (π/4 – x) = a, then tan 2 (π /4 + x) + tan 2 (π /4 – x) =

Philoid · Accepted Answer

<img w='626' height='69' src='https://static.insightsonindia.in/ncertusercontent/solutions/?domain=gF&l=PROJ33110/1560848486233961.png' style='vertical-align: middle;'> <img w='288' height='45' src='https://static.insightsonindia.in/ncertusercontent/solutions/?domain=gF&l=PROJ33110/1560848486938261.png' style='vertical-align: middle;'> = a2 - 2

Mark the correct alternative in the following:If tan (π/4 + x) + tan (π/4 – x) = a, then tan2 (π /4 + x) + tan2 (π /4 – x) =

Mark the correct alternative in the following:
If tan (π/4 + x) + tan (π/4 – x) = a, then tan² (π /4 + x) + tan² (π /4 – x) =