Math, asked by chiraggarg1708, 1 year ago

Prove that sinA-cosA+1/sinA+cosA-1=1/secA×tanA

aru2296: Are you sure your questions is right

chiraggarg1708: Yes

chiraggarg1708: I am got it from a book of NCERT exampler

aru2296: okh

Answers

Answered by kameena1

HEY ......

HERE'S YOUR.......

HIGH RATED GABRU---HARSH

LHS = (sinA-cosA+1)/(sinA+cos-1) = (1 + sinA) (1 - sinA)/cos A(1 - sinA) = 1 - sin2A/cos A(1 - sinA) = cos2A/cos A(1 - sinA) = cosA/(1 - sinA) = 1/ (1/cosA - sinA/cosA) = 1/(secA - tanA) = RHS Hence Proved

THANKS FOR SHARING YOUR QUESTION DUDE

kameena1: let me again checj

kameena1: check

chiraggarg1708: See the RHS of question and your answer

kameena1: ho sakta hain book mein miss print ho .......kyunki kai books mein dekha hain maine khs kar ....proving question mein

chiraggarg1708: Book main thik hai maine 2 books main dekha hai

chiraggarg1708: Evergreen solutions and NCERT exampler

kameena1: ohh toh main fir try krta hooon

chiraggarg1708: Ok thanks

kameena1: yar report kyun kar diya ...edit kaise kru

chiraggarg1708: Write the answer in comments

Answered by SwaggerGabru

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