1.

८ एड * ८६४९ 509 * ८57 पट

Answer»

2sin 45. cos 45. tan 45

= 2sin 45. cos 45. sin 45/cos 45

= 2sin^2 45

= 2(1/sqrt(2))^2 [sin 45 = 1/sqrt (2)]

= 2*1/2

= 1



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