Question

In ΔABC, right angle at C in which AB= 29units, BC= 21units and ∟ABC=Ɵ. Then cos2Ɵ + sin2 Ɵ =

A)0

B)1

C)-1

D)10

​

Answer 1

Answer:

b) 1

Step-by-step explanation:

cuz of the identity cos^2theta + sin^2theta = 1