English

Sin 43° cos 47° + cos 43° sin 47° = ?

Advertisements
Advertisements

Question

sin 43° cos 47° + cos 43° sin 47° = ?

Options

  • 0

  • 1

  • sin 4°

  • cos 4°

MCQ
Advertisements

Solution

1

Explanation:

Given expression = sin 43° cos (90° – 43°) + cos 43° sin (90° – 43°)

= sin 43° · sin 43° + cos 43° · cos 43°

= sin2 43° + cos2 43°

= 1

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Trigonometric Ratios of Some Complemantary Angles - MULTIPLE-CHOICE QUESTIONS (MCQ) [Page 593]

APPEARS IN

R.S. Aggarwal Mathematics [English] Class 10
Chapter 12 Trigonometric Ratios of Some Complemantary Angles
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 6. | Page 593
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×