First slide

Functions (XII)

Question

$The number of real solutions of the equation (9 / 10)^{x} = - 3 + x - x^{2} is$

Moderate

A

2
B

0
C

infinite
D

n

Solution

${(\frac{9}{10})}^{x} = - (x^{2} - x + 3) = - ({(x - \frac{1}{2})}^{2} + \frac{11}{4}) Observe the graphs of y = {(\frac{9}{10})}^{x} and$ $y = - ({(x - \frac{1}{2})}^{2} + \frac{11}{4})$
do not intersect

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App