Compare (-1) Raised to Powers 69 and 79: Which Value is Larger?

Which is larger?

(1)69(1)79 (-1)^{69}⬜-(-1)^{79}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Place the appropriate sign
00:03 First let's calculate the sign
00:07 Odd power, therefore the sign remains negative
00:12 1 raised to any power always equals 1
00:15 Now let's calculate the sign of the second power
00:20 Odd power, therefore the sign remains negative
00:26 1 raised to any power always equals 1
00:30 Negative times negative always equals positive
00:35 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Which is larger?

(1)69(1)79 (-1)^{69}⬜-(-1)^{79}

2

Step-by-step solution

First, let's evaluate (1)69(-1)^{69}. Since 69 is an odd number, (1)69=1(-1)^{69} = -1.

Next, evaluate (1)79-(-1)^{79}. The power 79 is also odd, so (1)79=1(-1)^{79} = -1. Applying the additional negative sign results in (1)=1-(-1) = 1.

Now, we compare these two results. The expression (1)69=1(-1)^{69} = -1 and the expression (1)79=1-(-1)^{79} = 1.

Comparing the two: 1-1 is less than 11.

Therefore, the relationship is (1)69<(1)79(-1)^{69} < -(-1)^{79}.

The correct answer is <\lt.

3

Final Answer

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\( \)\( -(2)^2= \)

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