Question

Given that sinα = √3/2 and cosβ = 0, then the value of β − α is
a) 0°
b) 90°
c) 60°
d) 30°

Answer 1

Step-by-step explanation:

a = 60

b = 90

b-a = 30 ..............

so its option d

Answer 2

Answer:

D) 30

Step-by-step explanation:

$sin \alpha = \sqrt{3 \div 2 =} \\ = 60$

$cos \beta = 0 \\ = 90$

$\beta - \alpha = 90 - 60 \\ = 30$

I hope it helped