Grade 12th passTrigonometry
Que- tan(A/2) is equal to 1)cosecA + cotA 2)secA - cotA 3)cosecA - cotA 4)secA + cotA
Que- tan(A/2) is equal to
1)cosecA + cotA
2)secA - cotA
3)cosecA - cotA
4)secA + cotA
1 Answer
sahil
Tan (a/2)=sin(a/2)/cos(a/2)=2sin^2(a/2)/2sin(a/2)cos(a/2)=1-cos(a)/sin(a)=cosec(a)-cot(a) option 3 is correct .Please approve if it helps
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