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If cosA=(2cosB-1)/(2-cosB) then tanA/2 * cotB/2 has value equal to.......(if A,B belongs to (0,pi).

Neha , 7 Years ago
Grade 11
anser 1 Answers
alla sai vinay kumar

Last Activity: 7 Years ago

Ans:can will be "ROOT3=1.732"BCOZ WE HAVE:COSA=(2COSB-1)/(2-COSB)THEN SUBSTITUTE B=60(DEGREES)THEN WE WILL BE GETTING A=90(DEG)SO,(A/2)=45(DEG),(B/2)=30(DEG),THEN ANSWER WILL BE ROOT3

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