 Definite Integrals homework Help at TutorEye

# Best Homework Help For Definite Integrals

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## Definite Integrals:

When we Integrate any function we get a function and a constant term. But in case of a definite integral we get a unique answer without any integration constant. The application of definite integral is used to calculate the area bounded between the curves and find the volume of a solid body.

We can also say that; In a function f(x) which is continuous in the given interval[a,b] if we divide the given interval into n equal parts of width ∆x and select xi from the given interval, then definite integral of a function from a  to b is given by: ## Definite Integrals Sample Questions:

Question 1: is equal to

(a) 1

(b) 2

(c) 0

(d) -2

Explanation: on dividing and multiplying by 1- sinx

Question 2: is equal to

(a) (b) (c) (d) Explanation: Question 3: Find the value of dx

(a) 0

(b) 2

(c) 4

(d) 8

Explanation: I = dx = dx

Question 4: Evaluate dx

(a) 0

(b) (c) (d) None of these

Explanation: dx.........eq1

Question 5: What is the derivative of x>0 is

(a) (b) - (c) x(x-1)

(d) Explanation:  Question 6: Given that  I10= dx, then, find the value of I10 +90 I8 is

(a) 9 (b) 10 (c) (d) 9 Explanation: I^10= dx   {applying the rule of by-parts, using ILATE.}

Question 7: is equal to

(a) 0

(b) 1

(c) (d) Explanation: I = ……………eq(1)

Question 8: dx is equal to

(a) 0

(b) (c) (d) Explanation: I = dx

Question 9:Calculate dx

(a) 0

(b) (c) (d) Explanation: Using the formula cos x = Question 10: f(x) dx is equal to

(a) 2 f(x)dx

(b) 0

(c) f(x)dx + f(2a-x)dx

(d) f(x)dx + f(2a-x)dx

Explanation: I = f(x)dx  = 