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# Limits of Trigonometric Functions JEE Notes | EduRev

## JEE : Limits of Trigonometric Functions JEE Notes | EduRev

The document Limits of Trigonometric Functions JEE Notes | EduRev is a part of the JEE Course Mathematics (Maths) Class 11.
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limit of Trigonometric Functions

(a)  = 1 (approach from left side)

(b)  = 1 (approach from right side)

(c) = 1

(d)  = 1

[Where x is measured in radians]

Ex.17 Find

Sol.

Ex.18 Evaluate :

Sol.

Ex.19 Solve

Sol.

Note : Limit Using Expansion of Functions

Ex.20 Find

Sol.

Ex.21 Find

Sol.

This is of the form 0/0 if we put x = 1. Therefore we put x = 1 + h and expand.

Ex.22 Evaluate

Sol.

Ex.23 Let f(x) be a function such that  Find the values of a and b such that

Sol.

R.H.S. is finite then L.H.S. is also finite, then 1 + a –b = 0  and

Ex.24 If the  exists and has the value equal to l, then find the value of

Sol.

Use binomial expansion to get the following relations :

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## Mathematics (Maths) Class 11

158 videos|186 docs|161 tests

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