Advertisement Remove all ads

Express Each One of the Following in Terms of Trigonometric Ratios of Angles Lying Between 0° and 45° Sin 59° + Cos 56° - Mathematics

Express each one of the following in terms of trigonometric ratios of angles lying between
0° and 45°

Sin 59° + cos 56°

Advertisement Remove all ads

Solution

We have `sin (90^@ -  theta) = cos theta` and `cos(90^@ - theta) = sin theta` so

`sin 596@ + cos 56^@ = sin(90^@ - 31^@) + cos 90^@ (90^@ - 34^@)`

`= cos 31^@ + sin 34^@`

Thus the desired expression is `cos 31^@ + sin 34^@`

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

RD Sharma Class 10 Maths
Chapter 10 Trigonometric Ratios
Exercise 10.3 | Q 3.1 | Page 53
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×