Math, asked by niteshkhatri799, 6 months ago

PROVE THAT
cos+sin / cos-sin =1+tan / 1-tan

Answers

Answered by bc200403726

2

Answer:

Step-by-step explanation:

LHS

= cosA/1-(sinA/cosA) + sinA/1-(cosA/sinA)

=cosA/(cosA-sinA)/cosA+sinA/(sinA-cosA)/sinA

=cosA ×cosA/cosA-sinA+(sinA×sinA)/sinA-cosA

=cos^2 A/cosA-sinA + sin^2 A/sinA-cosA

=cos^2 A-sin^2 A/cosA-sinA

=(cosA+sinA) (cosA-sinA)/cosA-sinA

=cosA+sinA

Previous Question

Next Question

Similar questions

English, 2 months ago

Q:5) Fill in the blanks with was or were.-5 M 1) We __late for the school 2) It_a wet and cold morning. 3) You _angry with me. 4) They _ singing. 5) She __at my house yesterday.

History, 2 months ago

3)What tragic incident take place on 13th April 1919?

Hindi, 2 months ago

इकट्ठा पर पांच वाक्य बनाओ in hindi...

Social Sciences, 6 months ago

Class-ath Assignment-II 8st Sub. - Sick U Shout type of cuestion/answers, Social as 1 what is mation stale ? 2. noha was Frederic sorrieu? 3. Wame any two countries Conquered by Napoleon, 4 Name the countries which mal in Vienna in 181 vienna Congresse 5. what was the Treaty of Vienna? to what was young Italy 7. nok at do you mean by marianne? 8. what is Contour ploughing? 9 what is bad land 10.

Hindi, 6 months ago

जमाना शब्द का वाक्य बनाए...

Chemistry, 11 months ago

are glass's atoms are orderly arranged...

English, 11 months ago

as per census 2011 what was the workforce participation rate for femels in the urban sector...

CBSE BOARD X, 11 months ago

whether the fifteen minutes allotted to read the question paper is included within the three hours of writing the answers or not ????#cbse10th in a hurry..... answer me fast...