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Veseljchak [2.6K]
3 years ago
14

Is the following statement true? Explain.

Mathematics
1 answer:
sukhopar [10]3 years ago
4 0

Step-by-step explanation:

We can prove the statement is false by proof of contradiction:

We know that cos0° = 1 and cos90° = 0.

Let A = 0° and B = 90°.

Left-Hand Side:

cos(A + B) = cos(0° + 90°) = cos90° = 0.

Right-Hand Side:

cos(A) + cos(B) = cos(0°) + cos(90°)

= 1 + 0 = 1.

Since LHS =/= RHS, by proof of contradiction,

the statement is false.

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3^3 + 2 = 27 +2 = 29 
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3 years ago
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nikitadnepr [17]

Answer:

$46

Step-by-step explanation:

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7 0
3 years ago
Why is the derivative equals to 0?
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Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• tan²x + 1 = sec²x

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7 0
3 years ago
PLEASE HELP ASAP!!!!!!!
love history [14]

Answer:

(a) Because it is an exterior angle

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Angle 2 is an exterior angle because it is adjacent to the interior angle 1, and an exterior angle is equal to the sum of the measures of the two nonadjacent interior angles:

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4 years ago
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