Question

B.
Assertion (A): cos 20º – sin 20° > 0
Reason (R) If OER, cos - sin > 0​

Answer 1

Answer:

A

Step-by-step explanation:

Asserration is right because

cos 20° - sin 20°

-1(sin20°+cos20°)

-1 • 1

-1

since -1 is less than zero

so asseration is right

thats the answer

if you know the identities of trigonometry you can do this without using Internet