Math, asked by lachiahmarripelly, 1 year ago

Prove that
Cos theta/1-sin theta +cos theta/1+sin theta=4

Answers

Answered by patelvikram6835

0

Answer:

Cos theta/1-sin theta+cos theta/1+sin theta

cos theta (1+sin theta)+cos theta(1-sin theta)/1¹-sin²theta

cos theta+cos theta sin theta +cos theta-sin theta cos theta/1-sin² theta

cos theta+cos theta/cos² theta

2cos theta/cos²theta

2/cos theta=4

cos theta=1/2

theta=60° _____________(as cos 60°=1/2)

Previous Question

Next Question

Similar questions

Math, 7 months ago

Abdul, Ramesh and John put 1 point in altogether 4,00,000 rupees to form a partnership with their investment being in the proportion 4:5:11. What was Ramesh's actual share in the capital? Rs.80,000 Rs.1,00,000 Rs.2,20,000 Rs.2,00,000...

Computer Science, 7 months ago

complete the table 1 name of the social reformer raja rammohan roy Newspaper/book work of the organisation...

Biology, 7 months ago

do you think that optimum internal body temperature is very important for living things ...

English, 1 year ago

formal letter to other school principal inviting for the inter school athletic meet as a sports secretary...

Chemistry, 1 year ago

kindly solve this one.....

English, 1 year ago

Informal letter to a friend telling the importance of books...

Math, 1 year ago

In fig 10 is shown a sector oap of a circle with centre o...

Physics, 1 year ago

a bullet of mass 20g moving with a speed of 75ms^-1 hits a fixed wooden plank and comes to rest after penetrating a distance of 5cm. what is the average resistive force exerted by the wooden plank on the bullet?