Math, asked by AlbertEinstein123451, 1 year ago

how to solve this problem evaluate

tan 18/cos72

abhishek664: tan = sin /cos and cos72 = sin(90° - 18) then you can solve it

Answers

Answered by Anonymous

sorry my hand is injured that's why written in a little bad manner

hope this helps u

Attachments:

abhishek664: wrong

AlbertEinstein123451: wrong

AlbertEinstein123451: I am unable to understant

AlbertEinstein123451: understand

abhishek664: plz recheck your calculation

abhishek664: because your concept is correct

Answered by VEERA11

tan18/cos72=(sin18/cos18) x 1/cos72

=(sin(90-72)/cos18) x 1/cos72

=(cos72/cos18) x 1/cos72

=1/cos18=sec18 ans...

AlbertEinstein123451: yes

abhishek664: she is fake

AlbertEinstein123451: but it is wrong

abhishek664: n guys go your inbox

VEERA11: how it is wrong

abhishek664: because cos(90-72) = sin18

VEERA11: hey cos (90-theta)= sin theta.....

abhishek664: sry i m wrong

VEERA11: now leave it ...Einstein u can take return ur thanks....if I m wrong then

abhishek664: i haven't need to thanks n go from here. by

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