Advertisements
Advertisements
प्रश्न
If log (x2 - 21) = 2, show that x = ± 11.
योग
Advertisements
उत्तर
log (x2 - 21 ) = 2
⇒ x2 - 21 = 102
⇒ x2 - 21 = 100
⇒ x2 = 121
⇒ x = `+- 11 `
shaalaa.com
Interchanging Logarithmic and Exponential Forms
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Express the following in logarithmic form:
53 = 125
Find the logarithm of : 0.001 to the base 10
Find the logarithm of : 32 to the base 4
Find the logarithm of : 27 to the base 9
Find x, if : log3 x = 0
Find x, if : logx 2 = - 1.
Evaluate : log2 ( 1 ÷ 8 )
Evaluate : log5 125
Given log2 x = m. Express 2m - 3 in terms of x.
If log2x = a and log3 y = a, write 72a in terms of x and y.
