Trigonometric Equations Question 42

Question: The equation $ \sqrt{3}\sin x+\cos x=4 $ has

[EAMCET 2001]

Options:

A) Only one solution

B) Two solutions

C) Infinitely many solutions

D) No solution

Show Answer

Answer:

Correct Answer: D

Solution:

  • Given equation is $ \sqrt{3}\sin x+\cos x=4 $ which is of the form $ a\sin x+b\cos x=c $ with $ a=\sqrt{3},,b=1,,c=4 $ . Here $ a^{2}+b^{2}=3+1=4<c^{2}, $ therefore the given equation has no solution.