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Knowledge Expert
· commented
· 1 Months ago
sonu
· commented
· 1 Months ago
Knowledge Expert
· commented
· 1 Months ago
Use half-angle identity: tan(x/2) = (1 - cos x)/sin x = sin x/(1 + cos x).
Then cot(x/2) = 1/tan(x/2) = (1+cos x)/sin x, so
tan(x/2) + cot(x/2) = (1-cos x)/sin x + (1+cos x)/sin x
= (1-cos x+1+cos x)/sin x
= 2/sin x
= 2 cosecx
sonu
· commented
· 1 Months ago
Talented Boy
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· 1 Months ago
Knowledge Expert
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· 1 Months ago
ARINDAM DEBNATH
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· 1 Months ago
ARINDAM DEBNATH
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· 1 Months ago
Knowledge Expert
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· 1 Months ago
Talented Boy
· commented
· 1 Months ago
Talented Boy
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· 1 Months ago
Answer: Shri Hamid Ansari
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lovekush sonkar
· commented
· 1 Months ago