1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
2 years ago
12

Prove sin^2 theta-sin^2 theta is sin tetha sin 3 thetahow to prove..pls help!! thanksss

Mathematics
1 answer:
Artemon [7]2 years ago
3 0
Simply you can substitute theta=45 degrees (or any angle,not zero) in left hand side and right hand side.

or 

using a^2 - b^2 =(a+b)(a-b)

= sin(2x+x)sin(2x-x)
= sin 3x sin x
You might be interested in
Kim rode her bicycle 135 miles in 9 weeks, riding the same distance each week. Eric rode his bicycle 102 miles in 6 weeks, ridin
Juli2301 [7.4K]

Answer:

Eric rode 2 more miles per week than Kim rode.

Step-by-step explanation:

Find how many miles per week Kim rode by dividing the number of miles she rode by the number of weeks:

135/9

= 15

Find how many miles per week Eric rode:

102/6

= 17

So, Kim rode 15 miles per week and Eric rode 17 miles per week.

The answer is Eric rode 2 more miles per week than Kim rode.

4 0
3 years ago
How do you calculate slope of a line ?
Rzqust [24]

Answer:

The slope of a line characterizes the direction of a line.

Step-by-step explanation:

To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points . hope this helps you :)

6 0
3 years ago
A) -40÷5(2) <br> B) (-2) + 3(12) ÷ 4<br> C) -2(3+4)
Furkat [3]
Always do brackets first

a) -40/10 = -4
b) 36/4 -2 = 7
c) -2 x 7 = -14
5 0
2 years ago
Read 2 more answers
What is the relationship of the volume of the cube to its edge length
RSB [31]
The relationship is that the volume of a cube is equal to one edge length cubed or edge×edge×edge
5 0
3 years ago
HElp asap PLZZZZZZZZZZZZ!!!!!!!!!!!!!!!!
Elden [556K]

\huge{ \mathcal{  \underline{ Answer }\:  \:  ✓ }}

The given figure is a sphere :

\boxed{ \mathrm{volume =  \frac{4}{3}\pi {r}^{3}  }}

  • \dfrac{4}{3}  \times  \dfrac{22}{7}  \times 4 \times 4 \times 4

  • \dfrac{5632}{21}

  • 268.1 \:  \: mi {}^{3}

_____________________________

\mathrm{ ☠ \: TeeNForeveR \: ☠}

5 0
2 years ago
Other questions:
  • What is the product? 6 [ 4 -2 1 7 3 0]
    11·1 answer
  • In Jennifer’s anatomy and physiology class, her grade is determined by dropping the lowest score out of 10 tests and averaging t
    8·2 answers
  • Simple and easy question<br> please help
    8·2 answers
  • Write an expression that is equivalent to the expression 4n-n+0.5n-2n
    5·1 answer
  • Plss i need help with this
    8·1 answer
  • Keri has $30.67. She goes to Target and buys a pack of pencils for $2.38 and an eraser for 56 cents. How much money did Keri spe
    6·1 answer
  • HELP ME WALLAHO HELP ME WALLAHI HELP
    11·1 answer
  • Can someone help me with this it’s timed!!! Please help
    6·1 answer
  • Kyle uses a spreadsheet to keep track of his spending. this is an example of kyle’s spreadsheet for two months: a 2-column table
    15·1 answer
  • If m=5 and n = 2, find the value of 3mn
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!