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BARSIC [14]
2 years ago
11

How do you simplify sin 4 theta using the double angle theory?

Mathematics
1 answer:
S_A_V [24]2 years ago
3 0
Double angle formulae involve trigonometric functions of double angles and in order to get its value you must consider the following:
-derive the double angle formula from additional formula
-write the formula for the angle in alternative form
-use the formula to write trigonometric expressions in different forms
-use the formula in the solution of trigonometric equations

And the answer would be 4sin(theta)cos(theta)cos(2theta)
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0.10 x 37.7 explain please
kodGreya [7K]

Answer: The answer is 3.77.

Explanation: Since 0.10 is 10 times smaller than 1, we know that if we divide 37.7 by 10, we will get the same answer as 0.10 x 37.7.

5 0
2 years ago
The ratio of the number of volleyball to the number of basketballs in the P.E room is 4:7 .there are 21 basketballs . How many v
densk [106]
Let volleyball be v and let basketball be b.

v : b = 4 : 7,      b = 21

v : 21 = 4 : 7

v/21 = 4/7

7*v = 4*21

v = 4*21/7

v = 4*3

v = 12

Volleyballs are 12

Hope this helps.
8 0
3 years ago
Help me please<br><br> thanks in advance
Mandarinka [93]
The answer is equal to 10.
3 0
3 years ago
The sales tax for an item was $9.40 and it cost $470 before tax. find the sales tax rate. write your answer as a percentage.
ankoles [38]
The sale tax would be the 2% of 470
5 0
3 years ago
What is 3/4 + 2/5<br><br> A. 23/30 <br> b. 40/50<br> c.1 3/20<br> D. 1/50
natta225 [31]
It would be A. 23/30 if it was not simplified but if you need it to be simplified it would be C. 1 3/20

Your welcome
3 0
2 years ago
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