Question

SECTION C
Q.6 ANSWER THE FOLLOIWNGS. (3 MARKS EACH) (09)
1. Find the value of tan 60° and tan 30°
geometrically.
2. Express the ratios COSA, tanA and seca in
terms of sina​

Answer 1

Answer:

cos a =1/sec a

tan a = sin a/cos a

sec a=1/cos a

Answer 2

In the first case we need to consider an equilateral ∆ only because it has 60° angle.