Trigonometry

JEE Main level, single correct, medium

Question 1 of 1

The maximum value of the function f(x)=3sin⁡x+4cos⁡xf(x) = 3\sin x + 4\cos x is:

Show answer and solution

Answer: (C) 5

Maximum of asin⁡x+bcos⁡xa\sin x + b\cos x is a2+b2=32+42=25=5\sqrt{a^2 + b^2} = \sqrt{3^2 + 4^2} = \sqrt{25} = 5.

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.
See it move: Unit circle trigonometry simulationDrag the sliders and watch the numbers in this question change.

More Mathematics practice

JEE Main Mathematics practice question on Trigonometry, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.