Question

Please solve this... ​

Answer 1

Step-by-step explanation:

as tanπ/4 = 1

now

(tanπ/4 - tanx )/ (1 + tanπ/4*tanx)

=> tan(π/4 - x)

now according to the question

d (tan (π/4-x) )^1/2 /dx

we have 1/2*( sec²(π/4-x) / tan(π/4-x))

solving above equation we will get the RHS thus proved