Question

In a right angled APQR, right angled at R, PR/QR=V3, then ZPQR =​

Answer 1

Step-by-step explanation:

PR²= PQ² +QR²

QR²= PR² -PQ²

NOW

PS² = PQ² QS²

PS² = PQ² +(QR)²

(2 )

PS² = PQ² +QR²

4

PS² = PQ² + { PR ² -PQ² }. [ from 1 ]

{. 4. }

PS² = 4PQ² + PR² -PQ²

------------------------

4

4PS² = 3 PQ² + PR²

-PR² = 3 PQ² -4 PS²

Ans = PR² = 4PS² - 3 PQ²

EXPLANATIONS

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