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3 years ago

Will give BRAINLIEST for the CORRECT answer.

Mathematics

2 answers:

Svet_ta [14]3 years ago

6 0

I'd ask for brainliest, but someone already answered. RIP I need only 1 or 2 more for my rank-up... lol...

Mars2501 [29]3 years ago

3 0

Answer: Perpendicular bisector and angle bisector are similar in its construction because we use ruler and compass. The difference is the output of each construction.

An angle bisector is a line that bisects and angle into two angles of equal measure.

A perpendicular bisector is a line that bisects another line and produces a right angle or an angle that measures 90 degrees.

Step-by-step explanation: Do i Get Brainliest

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What are the LCM of 5 and 7

victus00 [196]

7 ×5 = 35 and 5 × 7 = 35
ans is 35

6 0

3 years ago

Show that cos(3x) = cos3(x) − 3 sin2(x)cos(x). (Hint: Use cos(2x) = cos2(x) − sin2(x) and the cosine sum

otez555 [7]

Step-by-step explanation:

To prove:

$\cos 3x=\cos^3x-3\sin^2 x\cos x$

Identities used:

$\cos(A+B)=\cos A\cos B+\sin A\sin B$ ......(1)

$\sin 2A=2\sin A\cos A$ ........(2)

$\cos 2A=\cos^2A-\sin^2 A$ .......(3)

Taking the LHS:

$\Rightarrow \cos 3x=\cos (x+2x)$

Using identity 1:

$\Rightarrow \cos (x+2x)=\cos x\cos 2x-\sin x\sin 2x$

Using identities 2 and 3:

$\Rightarrow \cos x(\cos ^2x-\sin^2 x)-\sin x(2\sin x\cos x)\\\\\Rightarrow \cos^3x-\sin^2x\cos x-2\sin^2 x\cos x\\\\\Rightarrow \cos^3x-3\sin^2x\cos x$

As, LHS = RHS

Hence proved

4 0

3 years ago

22nd term: 28, 23, 18, 13,..

Verizon [17]

Answer:

The 22nd Term is -77.

Step-by-step explanation:

The pattern is -5. If you subtract 5 from each starting number you'll get the following number.

Ex: 28 - 23 = 5

23 - 18 = 5

18 - 13 = 5

Subtract 5, 22 times and you will get -77.

I hope this was the most brainliest answer, thank you for letting me help you !

7 0

3 years ago

Please help me pleasee

ryzh [129]

Answer:

x = y = 64° , z = 20°

Step-by-step explanation:

x = y = $\frac{180-52}{2}$ = 64 °

m∠ADC = 52° + x

m∠ADC = 52° + 64° = 116°

z = 180° - 116° - 44° = 20 °

7 0

2 years ago

Macky wants to open a checking account. He is examining different banks and banking accounts. Then he will choose a bank account

Alex

I think the answer would be c. I mean, I know I wouldn't choose a bank 'cause it offered a prize. Hope this helps!

4 0

3 years ago

Read 2 more answers