Q. 233.7( 3 Votes )

Mark the correct A.

B.

C.

D.

Answer :

We know tan2x + 1 = sec2x…(1)


Let tan x be a and sec x be b


According to question


a + b =k


Manipulating and Substituting in 1 we get


a2 – b2 = -1


(a-b)( a + b) = -1


(a-b).k =-1


a-b = -k-1


a + b =k


a-b = -k-1


subtracting above equations we get


2b =k +k-1




Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

True and False<brMathematics - Exemplar

Find the values oRD Sharma - Mathematics

Prove that :
<
RD Sharma - Mathematics

The value of cos<Mathematics - Exemplar

The value of sin Mathematics - Exemplar

cos 2θ cos 2<spanMathematics - Exemplar

The value of <spaMathematics - Exemplar

If <span lang="ENMathematics - Exemplar

If <span lang="ENMathematics - Exemplar

Fill in the blankMathematics - Exemplar