Advertisements
Advertisements
प्रश्न
If log (x2 - 21) = 2, show that x = ± 11.
बेरीज
Advertisements
उत्तर
log (x2 - 21 ) = 2
⇒ x2 - 21 = 102
⇒ x2 - 21 = 100
⇒ x2 = 121
⇒ x = `+- 11 `
shaalaa.com
Interchanging Logarithmic and Exponential Forms
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Express the following in exponential form : log80.125 = -1
Express the following in exponential form : logaA = x
Find the logarithm of : 0.001 to the base 10
Find the logarithm of : 0.125 to the base 2
Find x, if : log9243 = x
Evaluate : log16 8
Given log2 x = m. Express 2m - 3 in terms of x.
Given log5 y = n. Express 53n + 2 in terms of y.
If log2x = a and log3 y = a, write 72a in terms of x and y.
State true or false in the following:
If log 2 8 = 3, then log 8 2 = `(1)/(3)`
