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Question

If A=300, then
sin2A=2sinAcosA=2tanA1+tan2A
If true enter 1 else 0

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Solution

Given, A=30
Now, sin2A=2sinAcosA=2tanA1+tan2A
L.H.S: sin2A=sin600=32
Middle Value : 2sinAcosA=2sin300cos300=2(12)(32)=32
R.H.S: 2tanA1+tan2A

= 2tan3001+tan2300

= 2(13)1+(13)2

= 2343

= 32
Thus, L.H.S=R.H.S

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