3 years ago

A) Show that sin 3x = 3 sin x - 4 sin³ x

Mathematics

1 answer:

svp [43]3 years ago

3 0

A) linked photo
b) linked photo

You might be interested in

5x-3(2x+7) and then evaluate if x=-2

Kamila [148]

Answer:

-19

Step-by-step explanation:

5x-3(2x+7) and then evaluate if x=-2

5(-2)-3(2(-2)+7)=

-10-3(-4+7)=

-10+12-21

2+-21

-19

8 0

4 years ago

Using pemdas please

Bond [772]

$4^{3}+2(8)=80$

Solution:

Given expression:

$4^{3}+2(8)$

<u>Expansion of PEDMAS: </u>

Parenthesis, Exponents, Division, Multiplication, Addition, Subtraction.

To solve the given expression using pedmas rule.

First solve the expression with parenthesis.

$4^{3}+2(8)=4^{3}+16$

Next do the exponents.

$4^{3}+2(8)=64+16$

Finally do the addition.

$4^{3}+2(8)=80$

Hence the answer is 80.

6 0

4 years ago

Read 2 more answers

A chalkboard has an area of 35.8 ft a smaller chalkboard is 0.7 times that size what is the area of the smaller chalkboard

Elenna [48]

The smaller chalkboard would be 25.06 ft

3 0

4 years ago

How many types of congruence criterion are in total.Name them

Makovka662 [10]

Answer:

Various types of Congruency are:

1. ASA (Angle Side Angle)

2. SSS (Side Side Side)

3. SAS (Side-Angle-Side)

4. AAS (Angle-Angle-Side)

5. RHS (Right angle-Hypotenuse-Side)

As of what I had learned (class 9) this is all but I am not sure if there are more

7 0

3 years ago

Read 2 more answers

A number is such that it is as much greater than 112 as it is less than it . find the number

lesya [120]

Answer. it is -111 because it is greater than 112 and in positive form it is smaller and in negative it is bigger .

6 0

3 years ago