Sec^2 x - 1 = tan^2x
Proof:
Sec^2x = 1+ tan^2x
1/cos^2x = 1 + sin^2x/cos^2x
<span>1/cos^2x - sin^2x/cos^2x = 1
</span>Using common denominator:
(1-sin^2x)/cos^2x = 1
sin^2x + cos^2 x = 1
cos^2 x = 1 - sin^2x
Substituting :
cos^2x/<span>cos^2x = 1
</span>1 = 1
Left hand side = right hand side
No, 56 is a multiple of 7 though.
Answer:
is a polynomial
Step-by-step explanation:
a polynomial is a set of numbers with multiple terms that are not simplify able
is not a polynomial because its actually one term, there is no addition/subtraction of different terms.
-13 is a single number, so not a polynomial
13x^-2 is also a single number, not a polynomial
Answer:
25
Step-by-step explanation:
<em><u>Formula</u></em>
Generally the formula is written as Area = side * side which is
<em><u>Givens</u></em>
side = s = 5
<em><u>Solution</u></em>
Area = 5 * 5
Area = 25 square inches.
The anwser is 40 becuase when you add 24+16=40