Evaluate the following:2 tan ^{2} 45^{circ}+c | vedclass

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(B) Given expression: $2 	an ^{2} 45^{\circ}+\cos ^{2} 30^{\circ}-\sin ^{2} 60^{\circ}$We know the trigonometric values:$	an 45^{\circ} = 1$$\cos 30

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) Given expression: $2 	an ^{2} 45^{\circ}+\cos ^{2} 30^{\circ}-\sin ^{2} 60^{\circ}$We know the trigonometric values:$	an 45^{\circ} = 1$$\cos 30^{\circ} = \frac{\sqrt{3}}{2}$$\sin 60^{\circ} = \frac{\sqrt{3}}{2}$Substituting these values into the expression:$= 2(1)^{2} + \left(\frac{\sqrt{3}}{2}ight)^{2} - \left(\frac{\sqrt{3}}{2}ight)^{2}$$= 2(1) + \frac{3}{4} - \frac{3}{4}$$= 2 + 0 = 2$

Evaluate the following:
$2 \tan ^{2} 45^{\circ}+\cos ^{2} 30^{\circ}-\sin ^{2} 60^{\circ}$

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Evaluate the following:$2 \tan ^{2} 45^{\circ}+\cos ^{2} 30^{\circ}-\sin ^{2} 60^{\circ}$