Question

1. Trigonometric Ratios & Values.​

Answer 1

The standard angles of trigonometrical ratios are 0°, 30°, 45°, 60° and 90°. The values of trigonometrical ratios of standard angles are very important to solve the trigonometrical problems. Therefore, it is necessary to remember the value of the trigonometrical ratios of these standard angles.

Answer 2

Step-by-step explanation:

Trignometric ratios are :

sin A=P/H

cos A=B/H

tanA=P/B. (where A is an angle ,p is perpendicular,h is hypotenuse and b is base)

values :

sin0=0. cos values will be from

sin30=1/2. right to left of sin.

sin45=1/√2

sin60=√3/2

sin90=1

tan values will be sin/cos.

hope it will help u