Solve Ques.2
ASAP !!
Please don't give useless solution.
Want appropriate solutions !!
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anurag108:
HLO
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this is the right way to solve this equation. i hope it helps.
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Hi Naira dear....
Your answer is .....
2. (1)
v² + 4√3v - 15
We need sum = 4√3 and product = - 15
= v² + 5√3v - √3v - 15
= v × ( v + 5√3 ) - √3 × ( v - 5√3 )
[ As 15 = 5√3 × √3 ]
= ( v - √3 ) ( v + 5√3 )
v = √3 or - 5√3
-----------------------------------------------------------------------------------------------------------------
(2).
2s² - ( 1 + 2√2 ) s + √2
= 2s² - s - 2√2 s + √2
= s × ( 2s - 1 ) - √2 × ( 2s - 1 )
= ( s - √2 ) ( 2s - 1 )
s = √2 or 1/2
-----------------------------------------------------------------------------------------------------------------
Hope it helps
Your answer is .....
2. (1)
v² + 4√3v - 15
We need sum = 4√3 and product = - 15
= v² + 5√3v - √3v - 15
= v × ( v + 5√3 ) - √3 × ( v - 5√3 )
[ As 15 = 5√3 × √3 ]
= ( v - √3 ) ( v + 5√3 )
v = √3 or - 5√3
-----------------------------------------------------------------------------------------------------------------
(2).
2s² - ( 1 + 2√2 ) s + √2
= 2s² - s - 2√2 s + √2
= s × ( 2s - 1 ) - √2 × ( 2s - 1 )
= ( s - √2 ) ( 2s - 1 )
s = √2 or 1/2
-----------------------------------------------------------------------------------------------------------------
Hope it helps
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