Advertisement Remove all ads

The Value of Cos2 17° − Sin2 73° is - Mathematics

MCQ

The value of cos2 17° − sin2 73° is 

Options

  •  1

  • \[\frac{1}{3}\]

  • 0

  • -1

Advertisement Remove all ads

Solution

We have: 

`cos^2 17°-sin^2 73°`

= `cos^2(90°-73°)-sin^2 73°` 

=` sin^2 73°-sin^2 73°` 

= 0

 

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

APPEARS IN

RD Sharma Class 10 Maths
Chapter 10 Trigonometric Ratios
Q 11 | Page 57
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×