# INTEGRATION FORMULAS FOR CLASS 12

## About "Integration Formulas for Class 12"

Integration Formulas for Class 12 :

Here we are going to see list of formulas in integration.

## Basic formulas in integration

∫ xⁿ dx = x⁽ⁿ ⁺ ¹⁾/(n + 1) + c

∫ (1/xⁿ) dx = -1/(n - 1) x⁽ⁿ⁻¹⁾  + c

∫ (1/x) dx = log x  + c

∫ e^(x) dx = e^x  + c

∫ a^(x) dx = a^x/(log a)  + c

∫ sin x dx = - Cos x + c

∫ cos x dx = Sin x + c

∫ cosec ² x dx = - Cot x  + c

∫ sec² x dx = tan x  + c

∫ sec x tan x dx = sec x  + c

∫ cosec x cot x dx = - cosec x  + c

∫ 1/(1 + x²) dx =  tan ⁻ ¹x  + c

∫ 1/ √(1 - x²) dx = sin ⁻ ¹x  + c

∫ tan x dx = log |sec x| + c

∫cot x dx = log |sin x| + c

∫cosec x dx = log |cosec x - cot x| + c

∫sec x dx = log |sec x + tan x| + c

∫u dv = uv - ∫vdu

Bernoulli formula :

∫u dv = uv - u'v1 + u''v2 - ............

∫f'(x)/f(x)  dx  =  log |x| + c

∫ f'(x) [f(x)]n dx  =  [f(x)]n + 1/(n + 1)

## Integration Formula When x is in the Form ax + b

∫  e^(a x + b) =  (1/a) e^ (a x + b) + c

∫ (ax + b)ⁿ dx = (1/a) (ax + b)⁽ⁿ ⁺ ¹⁾/(n + 1)   + c

∫ 1/(ax + b) dx = (1/a) log (ax + b) + c

∫ e^(ax + b) dx = (1/a) e^ (ax + b) + c

∫ sin (ax + b) dx = -(1/a) cos (ax + b) + c

∫ cos (ax + b) dx = (1/a) sin (ax + b) + c

∫ sec² (ax + b) dx = (1/a) tan (ax + b) + c

∫ cosec ² (ax + b) dx = -(1/a) cot (ax + b) + c

∫ cosec (ax+b)cot (ax+b)dx=-(1/a)Cosec (ax+b) + c

∫ sec (ax + b) tan (ax + b) dx = sec (ax + b) + c

∫ 1/[1+ (ax)²] dx = (1/a) tan ⁻ ¹ (ax) + c

∫ 1/ √[1 - (ax ²)] dx = (1/a) sin ⁻ ¹(ax)   + c

## Integration Formula in the form e^ax sin bx or e^ax cos bx

∫ eax sin bx dx  =  eax/(a2 + b2) (a sin bx - b cos bx) + c

∫ eax cos bx dx =  eax/(a2 + b2) (a cos bx + b sin bx) + c

## Standard Integration Formulas

∫ dx/(a2-x2)  =  (1/2a) log [(a + x)/(a - x)] + c

∫ dx/(x2-a2)  =  (1/2a) log [(x - a)/(x + a)] + c

∫ dx/(a2+ x2)  =  (1/a) tan-1 (x/a) + c

∫ dx/(a2- x2)  =  sin-1 (x/a) + c

∫ dx/(√x2- a2)  =  log (x + (√x2- a2)) + c

∫ dx/(√x2+ a2)  =  log (x + (√x2+ a2)) + c

√(a2- x2)  =  (x/2) √(a2- x2) + (a2/2) sin-1(x/a) + c

∫ √(x2- a2)  =  (x/2) √(x2- a2) - (a2/2) log(x+√(x2- a2))+c

∫ √(x2+a2)  =  (x/2) √(x2+ a2) + (a2/2) log(x+√(x2+ a2))+c After having gone through the stuff given above, we hope that the students would have understood, "Integration Formulas for Class 12"

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Graphing rational functions

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Converting repeating decimals in to fractions

Decimal representation of rational numbers

Finding square root using long division

L.C.M method to solve time and work problems

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Remainder when 17 power 23 is divided by 16

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