Home/ Questions/Q 4326
In Process
Adv
Rajan@2021
  • -1
Guru
Asked: 2021-04-05T20:01:55+05:30 In:

If A = 60° and B = 30° verify that cos(A-B) = cosA cosB – sinA sinB

  • -1

This is the basic and exam oriented question from trigonometric ratios in which we have given A = 60° and B = 30°

We need to prove that cos(A-B) = cosA cosB – sinA sinB

RS Aggarwal, Class 10, chapter 11, question no 15(ii).

class 10 cbsers aggarwaltrigonometric ratios
Share

    1 Answer

    1. Guru
      If A = 60° and B = 30° verify that cos(A-B) = cosA cosB – sinA sinB

      Hope it helps you.

      • 0
    Leave an answer

    Leave an answer

    Browse

    Choose from here the video type.

    Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

    Captcha Click on image to update the captcha.

    Related Questions

    Adv