Answer: I believe the answer is A
Step-by-step explanation:
Because to get the sign f(x) on the interval just count the minus signs, negative signs. Odd number gives you negative product. Even gives you a positive product, So I believe it is A.
Answer:
T
Step-by-step explanation:
Go to the right 1/4 of a unit and down 1/2 of a unit
The point is T
Answer:
see explanation
Step-by-step explanation:
(4)
consider the left side
factor the numerator
cosx - cos³x = cosx(1 - cos²x)
cancel sinx on numerator/denominator
= cosxsinx =right side ⇒ verified
(5)
Consider the left side
expand the factors
(1 + cotΘ)² + (1 - cotΘ)²
= 1 + 2cotΘ + cot²Θ + 1 - 2cotΘ + cot²Θ
= 2 + 2cot²Θ
= 2(1 + cot²Θ) ← 1 + cot²Θ = cosec²Θ
= 2cosec²Θ = right side ⇒ verified
(6)
Consider the left side
the denominator simplifies to
cosxtanx = cosx × = sinx
= sinx( + )
= +
= tanx + 1 = right side ⇒ verified
Answer:
(a) 525 g
<em>Since they're proportional to each other:</em>
<em />
<em>Cross-multiply & solve:</em>
<em />
(b) 38 cm^3
<em>Same thing, different numbers:</em>
<em />
<em>Cross-multiply & solve:</em>
<em />