Which of the following expressions is equivalent to (–7)5? A. –7 • –7 • –7 • –7 • –7 B. –7 • 5 C. (–7) • 7 • (–7) • 7 • –7 D. 5
2 answers:
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In isosceles right triangle, legs are equal. Let each leg is of x units . And the given hypotenuse is 5 square 6. We use pythagorean identity here, which is
Where a=b=x and c= 5 square root 6
And that's the length of both the legs . ANd that's the required answer .