What is the simplified value of the exponential expression 27 1/3
2 answers:
Answer:
<h2>3</h2>Step-by-step explanation:
Fraction exponents are equal to the x (the number that you get when you do the math needed)* root of the number being exponentiated.
=
= 3
Explanation of math:
The top number of the fraction is the power and the bottom number is the root.
So would become
or
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1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :
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ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:
2.
3. m(A) = Arccos(-0.641)≈130°,
4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc
i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.
ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:
2.
3. m(A) = Arccos(-0.641)≈130°,
4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc