Question

Evaluate : 2 cot? 45 + cos²60- sin30


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Answer 1

evaluate is 1.56674993

Answer 2

2.125 is answer.

2 \cot 45 + \cos ^ { 2 } 60 \sin 30

2\times 1+\left(\cos(60)\right)^{2}\sin(30)

2+\left(\cos(60)\right)^{2}\sin(30)

2+\left(\frac{1}{2}\right)^{2}\sin(30)

2+\frac{1}{4}\sin(30)

2+\frac{1}{4}\times \left(\frac{1}{2}\right)

2+\frac{1}{8}

\frac{17}{8}