Value of 1-cosQ÷1+cos Q
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Answered by
1
(1 - cosQ)/(1 + cosQ)
[ use, formula ,
1 - cosA = 2sin²A/2
1+ cosA = 2cos²A/2 ]
= {2sin²Q/2}/{2cos²Q/2}
= tan²Q/2
[ use, formula ,
1 - cosA = 2sin²A/2
1+ cosA = 2cos²A/2 ]
= {2sin²Q/2}/{2cos²Q/2}
= tan²Q/2
Answered by
1
Hi friend!!!
→1-cosQ=2sin²Q/2
→1+cosQ=2cos²Q/2
Now, by substituting we get
1-cosQ/1+cosQ=2sin²Q/2/2cos²Q/2
=tan²Q/2
I hope this will help u ;)
→1-cosQ=2sin²Q/2
→1+cosQ=2cos²Q/2
Now, by substituting we get
1-cosQ/1+cosQ=2sin²Q/2/2cos²Q/2
=tan²Q/2
I hope this will help u ;)
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