Question

Make the correct pair:

Answer 1

A

We know sine and cosine are complementary angles

$\sin (90-\theta )=\cos \theta$

B

According to the identity

$1+{\tan }^2\theta ={\sec }^2\theta$

C

$\csc \theta \times \sin \theta =\frac{1}{\sin \theta }\times \sin \theta =1$

D

The angle in a semi circle is 90 degrees. In other words any triangle with one of its sides being a diameter and all vertices on the circle has its angle opposite the diameter being 90 degrees.

E

The longest chord of the circle is diameter of the circle