Edit Description

Fill up the form and submit

Question

a + b =8 এর a-b=2 হলে, ab এর মান কত?

4

8

15

16

ANSWER : 3

Descrption

<p><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;"> </span><strong style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">ab</strong><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">  = {( a  +  b )&sup2; -  ( a - b )&sup2;} /4 </span></p>
<p><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">      = (8<sup>2</sup> - 2<sup>2</sup>)/4</span></p>
<p><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">      = (64 - 4)/4</span></p>
<p><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">      = 60/4 </span></p>
<p><span style = "color: #202124; font - family: arial, sans - serif; font - size: 16px; background - color: #ffffff;">      = 15</span></p>

Please, login first. click here to login

Cancel Login

©2024 SATT ACADEMY. All rights reserved.