1+tanA/sinA + 1+cotA/cosA = 2(secA+cosecA)
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1/sinA +tanA/sinA + 1/cosA + cotA/ cosA
= 2(secA + cosecA)
{ 1/sinA = cosecA ; tanA/sinA = sinA/cosA*sinA =secA ; 1/cosA = secA ; cotA/cosA = cosA/sinA*cosA = cosecA }
1/sinA +tanA/sinA + 1/cosA + cotA/ cosA
= 2(secA + cosecA)
{ 1/sinA = cosecA ; tanA/sinA = sinA/cosA*sinA =secA ; 1/cosA = secA ; cotA/cosA = cosA/sinA*cosA = cosecA }
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