Have a query? Ask a Tutor!!

Access to best educators and exclusive paper discussions

Can’t find what you’re looking for?

Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly

Maths-

General

Easy

Question

$L t subscript x plus 0 end subscript fraction numerator left parenthesis 1 minus cos space 2 x right parenthesis left parenthesis 3 plus cos space x right parenthesis over denominator x tan space 4 x end fraction$ is equal to

1
$\frac{1}{2}$
2
$\frac{1}{4}$

hint Hint:

In the question we have to simplify the equation using some trigonometric identities first then at last we will put the value of x.

The correct answer is: 2

$L t subscript x rightwards arrow 0 end subscript fraction numerator left parenthesis 1 minus cos space 2 x right parenthesis left parenthesis 3 plus cos space x right parenthesis over denominator x tan space 4 x end fraction equals L t subscript x rightwards arrow 0 end subscript space fraction numerator open parentheses 1 minus 1 plus 2 sin squared x close parentheses open parentheses 3 plus cos x close parentheses over denominator x.4 x end fraction fraction numerator 4 x over denominator tan 4 x end fraction space space space space space space space space space space space space space space space space space space space open square brackets cos space 2 x equals 1 minus 2 sin squared x close square brackets equals L t subscript x rightwards arrow 0 end subscript fraction numerator 2 sin squared x over denominator 4 x squared end fraction space L t subscript x rightwards arrow 0 end subscript open parentheses 3 plus cos x close parentheses L t subscript x rightwards arrow 0 end subscript fraction numerator 4 x over denominator tan 4 x end fraction equals 1 half L t subscript x rightwards arrow 0 end subscript fraction numerator sin squared x over denominator x squared end fraction space L t subscript x rightwards arrow 0 end subscript open parentheses 3 plus cos x close parentheses L t subscript x rightwards arrow 0 end subscript fraction numerator 4 x over denominator tan 4 x end fraction equals 1 half open parentheses 3 plus 1 close parentheses 1 equals 4 over 2 equals 2$

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.