<u>Answer and explanation</u>
(1+sinθ)(1-sinθ)=cos²θ
We are to prove that the left hand side is equal to the right hand side.
(1+sinθ)(1-sinθ) = 1(1-sinθ) + sinθ(1-sinθ)
= 1 - sinθ + sinθ - sin²θ
= 1 - sin²θ
From the trigonometric identity sin²θ + cos²θ = 1,
1 - sin²θ = cos²θ
Answer:
A. Holly is correct. Repeating decimals are always rational numbers.
Step-by-step explanation:
Rational number is the subset of:
- Whole number (Positive integer + 0)
- Natural number
- Negative integers
- Fractions
- Decimals (Whether positive or not, whether terminating or non terminating)
Hope this helps ;) ❤❤❤
Answer:
you didn't upload a picture for us to see
Answer:
y = -7x + 12
Step-by-step explanation:
<em>y = mx + b</em>
The <em>m </em>(slope) is -7 and the <em>y </em>is 12, substitute the numbers into the equation
Answer:
A
Step-by-step explanation:
A is a parabola
