Question

a
cosecA + sec A
cos2A - sin2A
sin Ascos 2A - COSA-S102A
$\frac{cos ^{2}a - sin ^{2}a }{sina \times cos ^{2}a - cosa \times sin^{2}a } = coseca + sec$
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Answer 1

Answer:

Your answer attached in the photo

Answer 2

Answer:

cos²A-sin²A/sinAcos²A-cosAsin²A

= (cosA+sinA)(cosA-sinA)/sinAcosA(cosA-sinA)

= cosA+sinA/sinAcosA

=cosecA+secA

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