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3 years ago

900.54 hundreds rounded

Mathematics

2 answers:

ehidna [41]3 years ago

7 0

Answer:

100.00 Lol :) hope this helps ⊕∵™

Step-by-step explanation:

yan [13]3 years ago

5 0

901- whole number
900.5- nearest tenth

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Is √16 rational or unrational?

trapecia [35]

Answer:

Rational number

Step-by-step explanation:

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2 years ago

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Elena-2011 [213]

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3 years ago

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Prove the trigonometric identity

Annette [7]

Answer:

Proved See below

Step-by-step explanation:

Man this one is a world of its own :D Just a quick question are you a fellow Add Math student in O levels i remember this question from back in the day :D Anyhow Lets get started

For this question we need to know the following identities:

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Lets solve the bottom most part first:

$1-\frac{1}{1-sec^2x} \\\\$

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$1-\frac{1}{1-sec^2x} \\\\\frac{1-sec^2x-1}{1-sec^2x} \\\\\frac{-sec^2x}{1-sec^2x} \\\\\frac{-(1+tan^2x)}{-tan^2x}$

now break the LCM

$\frac{-1}{-tan^2x}+\frac{-tan^2x}{-tan^2x}\\\\\frac{1}{tan^2x}+1\\\\cot^2x+1$

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and furthermore,

$cot^2x+1\\cosec^2x$

now we solve the above part and replace the bottom most part that we solved with $cosec^2x$

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3 years ago

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3 years ago

Two roots of a 3 degree polynomial equation are 5 and-5

notka56 [123]

Hello,

I suppose you want the equation

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y=k(x-5)²(x+5)
or
y=k(x-5)(x+5)²

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3 years ago