मराठी

find the value of: cos2 60° + sec2 30° + tan2 45° - Mathematics

Advertisements
Advertisements

प्रश्न

find the value of: cos2 60° + sec2 30° + tan2 45°

बेरीज
Advertisements

उत्तर

cos 60° + sec2 30° + tan2 45° = `(1/2)^2 + (2/sqrt3)^2 + 1^2`

= `(1)/(4) + (4)/(3) + 1`

= `( 3 + 16 + 12)/(12)`

= `(31)/(12)`

= `2(7)/(12)`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 23: Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios] - Exercise 23 (A) [पृष्ठ २९१]

APPEARS IN

सेलिना Concise Mathematics [English] Class 9 ICSE
पाठ 23 Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]
Exercise 23 (A) | Q 1.6 | पृष्ठ २९१
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×