NDA2020MathematicsTrigonometric Ratios & IdentitiesActual
Paragraph: Read the following information and answer that follow: Let a ^2 x+b ^2 x=c ; b ^2 y+a ^2 y=d and p x=q y . Question: What is p^2 q^2 equal to?
Options
- A(b-c)(b-d) (a-d)(a-c)
- B(a-d)(c-a) (b-c)(d-b)
- C(d-a)(c-a) (b-c)(d-b)
- D(b-c)(b-d) (c-a)(a-d)
Correct answer
B. (a-d)(c-a) (b-c)(d-b)
Step-by-step solution
From, p x=q y aligned & p^2 ^2 x=q^2 ^2 y & p^2 q^2 = ^2 y ^2 x = (d-a) (b-d) (a-c) (c-b) & = (a-d)(c-a) (b-c)(d-b) aligned