What is the value of (
2
1
−cot45
∘
)?
- A\frac{2\sqrt{2}-3}{2}
- B3/2
- C\frac{3\sqrt{3}-1}{3}
- D-1/2
Solution & Step-by-step Explanation
We know from trigonometric standard values that:
cot45
∘
=1
Substituting this value into the expression:
2
1
−cot45
∘
=
2
1
−1=−
2
1
cot45
∘
=1
Substituting this value into the expression:
2
1
−cot45
∘
=
2
1
−1=−
2
1