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kanajahbunn
20.09.2021 •
Mathematics
Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4
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Ответ:
Step-by-step explanation:
Step 1:
Write the expression
Step 2: Expand![(m + 2)^{2}](/tpl/images/2470/6351/a6ecb.png)
Step 3: Collect similar terms
Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.
Ответ:
Center of circle is ( 1, 0).
Slope of normal passing though ( 1, 0 ) and ( 2, -5 ) is :
So, slope of tangent will be :
Equation of tangent :
Hence, this is the required solution.