Math, asked by baliharsingh346, 4 months ago

ਦੋ ਗੋਲਿਆਂ ਦੇ ਆਇਤਨਾਂ ਦਾ ਅਨੁਪਾਤ 64:27 ਹੈ।ਇਨ੍ਹਾਂ ਦੀ ਸਤ੍ਹਾ ਦੇ ਖੇਤਰਫਲਾਂ ਦਾ ਅਨੁਪਾਤ ਹੈ *
1 point
(A) 3 : 4
(B) 4 : 3
(C) 9 : 16
(D) 16 : 9​

Answers

Answered by Anonymous
2

Answer:

This implies that

x2+2ax=4x−4a−13

or

x2+2ax−4x+4a+13=0

or

x2+(2a−4)x+(4a+13)=0

Since the equation has just one solution instead of the usual two distinct solutions, then the two solutions must be same i.e. discriminant = 0.

Hence we get that

(2a−4)2=4⋅1⋅(4a+13)

or

4a2−16a+16=16a+52

or

4a2−32a−36=0

or

a2−8a−9=0

or

(a−9)(a+1)=0

So the values of a are −1 and 9.

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