find the value of k if x = 1/2
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Hey !
x = 1/2
P ( x ) = 8x³ + kx² - 4x + 2
p (1/2) = 8 × (1/2)³ + k × (1/2)² - 4 × 1/2 + 2
=> 8 × 1/8 + k × 1/4 - 2 + 2 = 0
=> 1 + k/4 = 0
=> 4 + k = 0
=> K = -4
x = 1/2
P ( x ) = 8x³ + kx² - 4x + 2
p (1/2) = 8 × (1/2)³ + k × (1/2)² - 4 × 1/2 + 2
=> 8 × 1/8 + k × 1/4 - 2 + 2 = 0
=> 1 + k/4 = 0
=> 4 + k = 0
=> K = -4
annu3695:
is it correct
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Answered by
3
hiii!!!
here's ur answer...
given the value of x = 1/2
therefore on putting values :-
p ( 1/2 ) = 8 (1/2)³ + k (1/2)² - 4 (1/2) + 2 = 0
=> 8 ( 1/8 ) + k (1/4) - 2 + 2 = 0
=> 1 + k (1/4) = 0
=> k (1/4) = -1
=> k = -1/1 × 4/1
=> k = -4
hence, the value of k is -4
hope this helps..!!
here's ur answer...
given the value of x = 1/2
therefore on putting values :-
p ( 1/2 ) = 8 (1/2)³ + k (1/2)² - 4 (1/2) + 2 = 0
=> 8 ( 1/8 ) + k (1/4) - 2 + 2 = 0
=> 1 + k (1/4) = 0
=> k (1/4) = -1
=> k = -1/1 × 4/1
=> k = -4
hence, the value of k is -4
hope this helps..!!
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