Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Live 1-1 coding classes to unleash the creator in your Child
prove the following: cotA×cotB+cotB×cotC+cotC×cotA=1
this is true only if a+b+c= piproof: tan(a+b+c)=tanpi=0(tana+tanb+tanc – tanatanbtanc)/(1 – tanatanb – tanbtanc – tanctana) = 0or tana+tanb+tanc= tanatanbtancor 1/tanbtanc + 1/tanatanc + 1/tanatanb= 1or cotA×cotB+cotB×cotC+cotC×cotA=1KINDLY APPROVE :))
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -