Commerce (English Medium) Class 12 - CBSE Question Bank Solutions for Mathematics

x = `"t" + 1/"t"`, y = `"t" - 1/"t"`

x = `"e"^theta (theta + 1/theta)`, y= `"e"^-theta (theta - 1/theta)`

x = 3cosθ – 2cos³θ, y = 3sinθ – 2sin³θ

sin x = `(2"t")/(1 + "t"^2)`, tan y = `(2"t")/(1 - "t"^2)`

x = `(1 + log "t")/"t"^2`, y = `(3 + 2 log "t")/"t"`

If x = e^cos2t and y = e^sin2t, prove that `"dy"/"dx" = (-y log x)/(xlogy)`

If x = asin2t (1 + cos2t) and y = b cos2t (1–cos2t), show that `("dy"/"dx")_("at  t" = pi/4) = "b"/"a"`

If x = 3sint – sin 3t, y = 3cost – cos 3t, find `"dy"/"dx"` at t = `pi/3`

Differentiate `x/sinx` w.r.t. sin x

Differentiate `tan^-1 ((sqrt(1 + x^2) - 1)/x)` w.r.t. tan^–1x, when x ≠ 0

If x = sint and y = sin pt, prove that `(1 - x^2) ("d"^2"y")/("dx"^2) - x "dy"/"dx" + "p"^2y` = 0

If x = t², y = t³, then `("d"^2"y")/("dx"^2)` is ______.

Derivative of x² w.r.t. x³ is ______.

Integrate `((2"a")/sqrt(x) - "b"/x^2 + 3"c"root(3)(x^2))` w.r.t. x

Evaluate `int (3"a"x)/("b"^2 + "c"^2x^2) "d"x`

Evaluate `int sqrt((1 + x)/(1 - x)) "d"x`, x ≠1

Find `int x^2/(x^4 + 3x^2 + 2) "d"x`

Evaluate `int "dx"/sqrt((x - alpha)(beta - x)), beta > alpha`

Find `int sqrt(10 - 4x + 4x^2)  "d"x`

Evaluate `int (x^2"d"x)/(x^4 + x^2 - 2)`