Prove that
Tan A + cot A = 2 codec 2 A
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Answer:
Step-by-step explanation:
sinA/cosA +cosA/sinA
cross multiplying
sin^2A+cos^2A/sinAcosA
=1/sinAcosA
multiplying numerator and denominator by 2
=2/2sinAcosA
we know 2sinAcosA=sin2A
=2/sin2A
now cosec2A=1/sin2A
=>2cosec2A
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