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2 years ago

Is csc2 x + sec2x=1 an identity

Mathematics

2 answers:

maria [59]2 years ago

7 0

Answer:

Step-by-step explanation:

sin

cos

sin

cos

Dvinal [7]2 years ago

4 0

Answer:

explanation is below happy to help ya!

Step-by-step explanation:

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What is the slope of the line that contains the points (2, -6) and (-3, 1)?

jolli1 [7]

The slope would be -5 over 7

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3 years ago

How do I do the algebra problem 5(b-1)?

nirvana33 [79]

Answer:

5b-5

Step-by-step explanation:

When doing these kinds of problems you want to do dributive property which means you multiply whatever number is outside of the (), which is 5, and multiply that by b and 1.

when numbers are outside the () and right next to them without anything like +,-, or a division sign, it means to multiply.

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3 years ago

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25 hundredths in simplest form

IRISSAK [1]

.25 or 1/4 Is the simplest form

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3 years ago

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Without actual division prove that x4 +2x3 -2x2 +2x -3 is exactly divisible by<br> x2 +2x-3

Brut [27]

Answer:

Step-by-step explanation:

$\displaystyle\Large\boldsymbol{} x^4+2x^3-2x^2+2x-3= \\\\\\x^4+2x^2(x-1)+2x-\underbrace{2-1}_{-3}= \\\\\\x^4-1+2x^2(x-1)+2x-2 = \\\\\\(x^2-1)(x^2+1)+2x^2(x-1)+2(x-1) = \\\\\\\underline{(x-1)}(x+1)(x^2+1)+2x^2\underline{(x-1)} +2\underline{(x-1)} =\\\\\\(x-1)((x+1)(x^2+1)+2x^2+2)=\\\\\\(x-1)(x^3+x^2+2x^2+x+2+1)=\\\\\\(x-1)(x^3+3x^2+x+3) =\\\\\\(x-1)( \underline{(x+3)}x^2+\underline{(x+3)})=(x^2+1)\underbrace{(x-1)(x+3)}_{x^2+2x-3}= \\\\\\(x^2+1)(x^2+2x-3) : (x^2+2x-3)=x^2+1$

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2 years ago

In the figure <br> Find m

UNO [17]

Answer:

Step-by-step explanation:

just do the math

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3 years ago