Then (alpha)^2- (Beta)^2
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so you get alpha²- beta²=25-9=16.
I'm sorry I have a messy handwriting but hope u got it :)(:
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Vyshnavi3010:
Thanks for Your help
But I have a doubt Why did we multiply first equation by 2
what we got in the end were two linear eqns in two variables.
so I multiplied the first eqn by 2 to cancel alpha when I add the second eqn.
Ok Thanks for Your help
that's how I like to solve linear equations. you can use any other method if you like. like cross multiplication, substitution. I used elimination method.
^_^
can u mark it brainliest :-P
S but how
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