Math, asked by vik2kumar12, 1 year ago

cos²180/16+cos²1260/16+cos²900/16+cos²900/16

Attachments:

Answers

Answered by prasantaghariali

1

cos^2 180/16+cos^2(90-180/16)+cos^2(900/16)+cos(90-900/16)

=cos^2(180/16)+sin^2(180/16)+cos^2(900/16)+sin^2(900/16)

=1+1

=2

vik2kumar12: galt hai

vik2kumar12: second bhag jlt h

prasantaghariali: oops ak min

vik2kumar12: answer malum ni

vik2kumar12: mujhe

prasantaghariali: sahi h mere bhai

prasantaghariali: kyuki cos(90-@)=sin@ or sin(90-@)=cos@

vik2kumar12: achha se dekho bhai

vik2kumar12: glt h

Previous Question

Next Question

Similar questions

Math, 9 months ago

कथन। सरिता के पास अमीना से 10 कचे अधिक है। के पास कुल 20 को जो अमीना से 10 अमीना के पास कचेह(अधर) सरिता के पास (x+10) कचेहै। (व्यंजक रूप) के पास को अचर) कपास (x+10 काव्यजकप) X-10-20 (समीकरण रूप) सरोक्त रियति में सरिता के पास कुल 20 कर्च है, ना से 10 अधिक है, जिसे हमने समीकरण रूप में क्त किया है। ओ समीकरण को समझे x.10.20 - समीकरण की पहचान (= अर्थात समता) के चिन्ह से होती है। चर का का प्रयोग करके...

Biology, 9 months ago

what is a blood group?

Math, 9 months ago

21. Find the quadratic polynomial the sum and product of whose zeros are - 7 and 3 respectively.

Biology, 1 year ago

which of the folowing is not a pure sbstance ice mercury iron milk...

Math, 1 year ago

four main sources of history of modern India...

Math, 1 year ago

plz help problem sum..

English, 1 year ago

finding error of this image and also give me method best answer I mark as brainlest...

Math, 1 year ago

30 percent paseengers from a train got down at station a 50percent of the remaining got down at b if there were still 350 paseenger in the train how many passenger were there in the train before station a?