If cotA+tanB whole by cotB + tanA then prove that it is =cotA × tanB
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Step-by-step explanation:
(cosA/sinA+sinB/cosB)÷(cosB/sinB +sinA/cosA)
={(cosA.cosB+sinA.sinB)×sinB.cosA}÷{(cosA.cosB+sinA.sinB)×sinA.cosB}
=sinB/cosB×cosA/sinA
=cotA×tanB
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