Question

1 point
Q3:1f 5sinA - 12cosA = 0, find
the values of secA*
O 975
11/5
O 13/5
O 17/5​

Answer 1

Answer:

given- 5sina-12cosa=0

to find-sec a

5sina-12cosa=0

divide by cosa

5sina/cosa-12=0

5tana-12=0

5tana=12

squaring both sides

25tan^2a=144

tan^2a=144/25

we know 1+tan^2a=sec^a

sec^2a-1=144/25

sec^a=144/25+1

sec^a=169/25

seca=13/5