that means if b-2a is positive then we can square both sides.
Isn't it?
Exercise 1.16 [bomc]
হার জিত চিরদিন থাকবেই
তবুও এগিয়ে যেতে হবে.........
বাধা-বিঘ্ন না পেরিয়ে
বড় হয়েছে কে কবে.........
তবুও এগিয়ে যেতে হবে.........
বাধা-বিঘ্ন না পেরিয়ে
বড় হয়েছে কে কবে.........
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Re: Exercise 1.16 [bomc]
No, if $b-2a(\leq or \geq) m$ for some $m$ and you want to square then you have to make sure both $m$ and $b-2a$ are positive .
You spin my head right round right round,
When you go down, when you go down down......(-$from$ "$THE$ $UGLY$ $TRUTH$" )
When you go down, when you go down down......(-$from$ "$THE$ $UGLY$ $TRUTH$" )
Re: Exercise 1.16 [bomc]
General rule:
Squaring both sides of $a>b$ will be valid if and only if $|a|>|b|$ is true. And this can be true for the positive numbers $a,b$ only.
Squaring both sides of $a>b$ will be valid if and only if $|a|>|b|$ is true. And this can be true for the positive numbers $a,b$ only.
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Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi
Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi