Question

Which of the following trigonometric ratios have same values?

• A. $sin{0}^0,cos{0}^0$
• B. $sin{30}^0,cos{60}^0$
• C. $tan{30}^0,cosec{60}^0$
• D. $cos{90}^0,cosec{90}^0$

Answer 1

The correct option is B $sin{30}^0,cos{60}^0$

The values of the trigonometric ratios is as follows.

• $sin{0}^0=0,cos{0}^0=1$
• $sin{30}^0=\frac{1}{2},cos{60}^0=\frac{1}{2}$
• $tan{30}^0=\frac{1}{\sqrt{3}},cosec{60}^0=\frac{2}{\sqrt{3}}$
• $cos{90}^0=0,cosec{90}^0=1$

So, $sin{30}^0,cos{60}^0$ have the same values.