Home
Class 12
MATHS
Number of solutions of sum(r = 1)^5 cos ...

Number of solutions of `sum_(r = 1)^5 cos rx = 5` in the interval `[0,4pi]` is

A

0

B

2

C

3

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC EQUATIONS

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-2 : One or More than One Answer is/are Correct|11 Videos

  • TRIGONOMETRIC EQUATIONS

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-3 : Comprehension Type Problems|3 Videos

  • STRAIGHT LINES

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-5 : Subjective Type Problems|10 Videos

  • VECTOR & 3DIMENSIONAL GEOMETRY

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-5 : Subjective Type Problems|18 Videos

Similar Questions

Explore conceptually related problems

The number of solutions of sum_(r = 1)^(5)cosrx = 5 , in the interval [0, 2pi] is ___________.

Number of solutions of sum_(r=1)^(5)cos rx=5 in the interval [0,4 pi] is

The number of solutions of sum_(r=1)^(5)cos rx=5 in the interval [0,2 pi] is 0( b) 2(c)5 (d) 10

The number of solutions of sum_(r=1)^(6)cos(rx)=6 in

The number of solution of |cos x| =sin x in the interval 0 lt x lt 4pi is _________

The number of solutions of the equation sin2x-2cosx+4sinx=4 in the interval [0,5pi] is

The number of solutions of secxcos5x+1=0 in the interval [0,2pi] is

The number of solution of the equation |sin x|=|x-1| in the interval [0,pi]

The solution set of (2cos x-1)(3+2cos x)=0 in the interval 0<=x<=2 pi is

The number of solution of the equation Sigma_(r=1)^(5)cos(rx)=0 lying in (0, pi) is