Question

If m∠A = 30° then show that sin2 A + cos2A = 1​

Answer 1

Answer:

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Step-by-step explanation:

Angle A=30°

Substituting the value of A in the equation sin2A+cos2A=1

LHS= sin2(30)+cos2(30)=1[sin2a+cos2A=1]

RHS=1

Therefore,LHS=RHS

Hence proved