3 years ago

1. Prove that 2 tan x / 2- sec^2 x = tan 2x.

Mathematics

1 answer:

Vikentia [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Use trig identities:

tan

cos

sec

(

−

tan

)

tan

−

tan

sec

−

tan

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1) x-1+5<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-1%5C%5C%7D" id="TexFormula1" title="\sqrt{x-1\\}" alt="\sqrt{x-1\\}" align

TEA [102]

Answer:

See explanation below

Step-by-step explanation:

Find the value of x in each of the following

1) x-1+5√x-1+3=0

5√x-1 = -x -2

Square both sides

25(x-1) = (-x-2)^2

25(x-1) = x^2+4x + 4

25x-25 = x^2+4x + 4

x^2 +4x + 4 - 25x + 25 = 0

x^2 - 21x + 29 = 0

x = 21±√21²-4(29)/2

x = 21±√441-116/2

x = 21±√325/2

x = 21±18.03/2

x = 21+18.03/2 and 21-18.03/2

x = 19.515 and 1.485

4) x^4-64=0

x^4 = 64

$x = \sqrt[4]{64}$

x = 2.83

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Match each three dimensional figure to its volume based on the given dimensions.

Gre4nikov [31]

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Will Mark Brainliest!!!!!!

astraxan [27]

You want to find the value of x for which the area under the curve to the left of x is 0.6. One way to do that is to create the cumulative distribution function (CDF) for the given PDF, then see where it is equal to 0.6.

Doing that, we find a = 5.

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Let f(x) = 3x - 6 and g(x) = x - 2. Find f/g and its domain

Neko [114]

F(x) = 3x-6
g(x) = x-2

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What is the prime factorization of 480

Brut [27]

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