1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

ABC is a triangle with $$\angle A=30^\circ$$ and BC = 10 cm. The area of the circumcircle of the triangle is

COMEDK 2020 Mathematics - Properties of Triangles Question 2 English

A
5 sq cm
B
100 $$\pi$$ sq cm
C
$$\frac{100\pi}{3}$$ sq cm
D
25 sq cm
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If $$\sin 3\theta = \sin \theta $$, how many solutions exist such that $$ - 2\pi < \theta < 2\pi $$?

A
9
B
8
C
7
D
5
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The imaginary part of $$i^i$$ is

A
1
B
0
C
$$-$$1
D
2
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The amplitude of $${(1 + i)^5}$$ is

A
$${{ - 3\pi } \over 4}$$
B
$${{3\pi } \over 4}$$
C
$${{5\pi } \over 4}$$
D
$${{ - 5\pi } \over 4}$$
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