Let I = ⇒ I = ⇒ I = []⇒ I = 2 (tan π/4 – tan 0) + � ((π/4)4 – 0) + 2 (π/4 – 0)⇒ I = ⇒ I = ∴

Q17 of 271 Page 338

Evaluate

Let I =

⇒ I =

⇒ I = []

⇒ I = 2 (tan π/4 – tan 0) + � ((π/4)⁴ – 0) + 2 (π/4 – 0)

⇒ I =

∴

Evaluate