Question

5 sin theta minus 12 cos theta = 0 find the value of sec theta and Cos theta​

Answer 1

Step-by-step explanation:

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