Question

2 TAN²45+
Cos²30 - Sin ²60
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Answer 1

Answer:

2

Step-by-step explanation:

2+3/4-3/4

according to bodmas

11/4-3/4=8/4=2hopebit helps you

Answer 2

Answer:

$2 {tan}^{2} 45 + {cos}^{2} 30 - {sin}^{2} 60 \\ \\ tan45 = 1 \: \: \: \: \: \: cos30 = \frac{ \sqrt{3} }{2} \: \: \: \: \: sin60 = \frac{ \sqrt{3} } 2 \ \\ 2( {1})^{2} + ( \frac{ \sqrt{3} }{2}) ^{2} - ( \frac{ \sqrt{3} }{2} ) ^{2} \\ = 2 + \frac{3}{4} - \frac{3}{4} \\ = 2$