Trigonometric EquationEasy

Question

equals

Options

A. sec1

B. cosec1

C.tan1

D. tan1

Solution

is equal to

⇒ Given limit is equal to value of integral

x sec²x²dx
or

2x sec x²dx =

sec²tdt [put x² = t]
= (tan)₀¹ = tan 1.

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