Advertisements
Advertisements
Question
If sin A = `3/5 and cos B = 12/13`, evaluate:
sec2A
Sum
Advertisements
Solution
Given
sin A = `3/5 ⇒ cos A = 4/5`
Sec2 A = `(1/cos A)^2`
= `(5/4)^2`
= `25/16`
shaalaa.com
Is there an error in this question or solution?
Chapter 19: Trigonometry - EXERCISE 19A [Page 231]
