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3 years ago

Find all points on the curve y = cos x, 0 ≤ x ≤ 2π, where the tangent line is parallel to the line y = -x.

Mathematics

1 answer:

andre [41]3 years ago

7 0

Answer:

90⁰

Step-by-step explanation:

y=cosx

y'= -sinx

eqñ of tangent is y=-x

slope of tangent =-1

we know...

slope of tangent = y' or derivative of y

-sin x = -1

sin x= 1

x = 90⁰

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Answer:

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Step-by-step explanation:

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3 years ago

Find the slope of the line (4,5),(-3,-1)

koban [17]

Step-by-step explanation:

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• x1 → 4

• x2 → -3

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2 years ago

A kitten's weight increase by 12% each week for 4 mouths the little currently weighs 2.6 pounds which will not calculate how muc

krok68 [10]

Answer:

a. 2.6(0.12)

Step-by-step explanation:

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3 years ago

On a coordinate plane, line M N goes through points (2, 3) and (negative 3, 2). Point K is at (3, negative 3). Which point could

Fynjy0 [20]

MN goes through

(2,3)
(-3,2)

Slope:-

m=2-3/-3-2=-1/-5=1/5

Slope of perpendicular line:-

-5

Passes through k(3,-3)

Equation in point slope form

y-y1=m(x-x1)
y+3=-5(x-3)
y+3=-5x+15
y=-5x+12

Check one by one

0=-5(-12)+12=60+12=72
2=-5(2)+12=-10+12=2

Yes option B is correct

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2 years ago

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