A=45,show that sin2A=2sinAcosA
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Step-by-step explanation:
LHS:-
=> Sin 2A
=>Sin 2×45
=>Sin 90
=>1
RHS:-
=>2 Sin45 cos45
=>2×1/√2 × 1/√2
=>2×1/2
And 2 and 2 is cancel out
=>1
Hence,LHS=RHS
Sin 2A=2SinAcosA
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