Answer:
-4sinθcosθ
Step-by-step explanation:
Note:
1. (a + b)^2 = a^2 + 2ab + b^2
2. (a - b)^2 = a^2 - 2ab + b^2
3. sin^2θ + cos^2θ = 1
(sinθ -cosθ)^2 - (sinθ + cosθ)^2
= sin^2θ - 2sinθcosθ + cos^2θ - (sin^2θ + 2sinθcosθ + cos^2θ)
= sin^2θ + cos^2θ - 2sinθcosθ - (sin^2θ + cos^2θ + 2sinθcosθ)
= 1 - 2sinθcosθ - (1 + 2sinθcosθ)
= 1- 2sinθcosθ -1 - 2sinθcosθ
= - 2sinθcosθ - 2sinθcosθ
= -4sinθcosθ
The answer should be 149.668992
Answer:
82 cards to start with
Step-by-step explanation:
Represent the initial count of cards by c.
After Jason added 4 new cards, he had c + 4 cards.
The dog ate half of these: (c + 4)/2, which came to 43 cards.
Thus, (c + 4)/2 = 43 cards. Solving for c, we get c + 4 = 86, so c = 82 cards.
The sum of any number and its opposite is zero.
-3.08+3.08 is in the numerator leading to the numerator being zero. anything multiplied or divided by zero will be zero
Answer:
the slope of line is 2
Step-by-step explanation:
here
x1=0 & y1=1
x2=2 & y2=5
we know that .
the slope of line = y2-y1 / x2-x1
=5-1/2-0
=4/2
=2