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ss7ja [257]
3 years ago
15

No asking bc I have most of it myself but helping would be great

Mathematics
1 answer:
trapecia [35]3 years ago
8 0

Answer:

pretty sure its 3

Step-by-step explanation:

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I need answers asap... please
aleksandrvk [35]

Answer:

see explanation

Step-by-step explanation:

(4)

consider the left side

factor the numerator

cosx - cos³x = cosx(1 - cos²x)

\frac{cosx(1-cos^2x)}{sinx}[/tex = [tex]\frac{cosxsin^2x}{sinx}

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 × \frac{sinx}{cosx} = sinx

\frac{sin^2x(secx+cosecx)}{sinx}

= sinx( \frac{1}{cosx} + \frac{1}{sinx})

= \frac{sinx}{cosx} + \frac{sinx}{sinx}

= tanx + 1 = right side ⇒ verified











3 0
3 years ago
Plot the line for the equation on thr graph. y-2=-2(x+4)​
julia-pushkina [17]

Answer:

see attached

Step-by-step explanation:

y-2=-2(x+4)​

y -2 = x(-2) + 4(-2)

y -2 = -2x - 8

y = -2x - 8 + 2

y = -2x - 6

When  x = 0, y = -6. Hence (0,-6) is a point on the line

when y = 0, x = -3. Hence (-3,0) is a point on the line.

Plot these 2 points and connect with a line (see attached)

6 0
3 years ago
Am I right please tell me I really NEED IT
AlladinOne [14]

Answer:

it would 13

Step-by-step explanation:

19-6=13 there you go

5 0
3 years ago
Find the area of each regular polygon. Round to the nearest tenth.
Iteru [2.4K]

Answer:

I think it is C if you have a base nuber of 7 that is at least halfway acros it it can not be over 100

Step-by-step explanation:

6 0
3 years ago
A bicycle lock requires a two-digit code of numbers 1 through 9, and any digit may be used only once. Which expression would det
sweet-ann [11.9K]
The answer is the first choice.

P(both even) = (4P1)(3P1) / 9P2
5 0
3 years ago
Read 2 more answers
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