Advertisements
Advertisements
प्रश्न
Find the value of k in each of the following:
`(sqrt(9))^-7 xx (sqrt(3))^-5` = 3k
बेरीज
उत्तर
`(sqrt(9))^-7 xx (sqrt(3))^-5` = 3k
⇒ `{(3^2)^(1/2)}^-7 {(3)^(1/2)}^-5` = 3k
⇒ `3^-7 xx 3^((-5)/2)` = 3k
⇒ `3^(-7 -5/2)` = 3k
⇒ `3^((-14 - 5)/(2)` = 3k
⇒ `3^((-19)/(2)` = 3k
⇒ k = `(-19)/(2)`.
shaalaa.com
Solving Exponential Equations
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Find x, if : 42x = `1/32`
Find x, if : `(root(3)( 2/3))^( x - 1 ) = 27/8`
Solve for x : 9x+2 = 720 + 9x
If ax = b, by = c and cz = a, prove that : xyz = 1.
Prove that : `((x^a)/(x^b))^( a + b - c ) (( x^b)/(x^c))^( b + c - a )((x^c)/(x^a))^( c + a - b)`
Evaluate the following:
`(8/27)^((-2)/3) - (1/3)^-2 - 7^0`
Solve for x:
22x+1= 8
Solve for x:
p3 x p-2 = px
Solve for x:
`"p"^-5 = (1)/"p"^(x + 1)`
Find the value of (8p)p if 9p + 2 - 9p = 240.