Express the following as a function of a single angle.
Cos^2(81°) - sin^2(81°)
Answers
Answer:
= (162°)
Step-by-step explanation:
(81°) -
(81°)
we know that;
(x°) -
(x°) =
(2x°)
(81°) -
(81°) =
(2 * 81°)
= (162°)
Related Questions
Item 3Find the area of the polygon with the given vertices.W(0,\ 0),\ X(0,\ 3),\ Y(-3,\ 3),\ Z(-3,\ 0)The area is square units.
Write the equation of a line whose slope is 2/3 and crosses the y axis at (0, -5)
Write the number names.7. 428,737
3(5x+2)=2(3x-6)What is the answer, with shown work, please
Answers
Answers
first distribute
distributive property
a(b+c)=(ab)+(ac)
ac=a times c
so 4(x+5)=(4*x)+(4*5)=4x+20
7+4x+20=4x+27
7+4x+20, add 7 & 20 together
27+4x, Here is the result
Answers
Answer:
The numbers are 18, 22.5, and 13.5
Step-by-step explanation:
You first need to figure out what number you use to multiply to find your answer. I found 4.5
Now, multiply all numbers by 4.5
4 x 4.5 = 18
5 x 4.5 = 22.5
3 x 4.5 = 13.5
Using the ratioevaluation technique, the three numbers represented by the ratio are 18, 22.5 and 13.5 respectively
- (Actualratio÷sumofratios)×sumofvalues
Valuewithratioof4:
- (4 ÷ (4+5+3)) × 54 = 18
Value with ratio of 5:
- (5 ÷ (4+5+3)) × 54 = 22.5
Value with ratio of 4 :
- (3 ÷ (4+5+3)) × 54 = 13.5
Therefore, the values are 18,22.5and 13.5respectively
Learn more : brainly.com/question/867574
Answers
The positive difference between the square of the sum of the first five positive integers and the sum of the first five positive perfect squares is 170. This is obtained by taking the sum of first five numbers, squaring the sum and subtracting the sum of first five perfect squares.
Calculate the positive difference:
The sum of first five positive integers = 1+2+3+4+5 = 15
Square of the sum of the first five positive integers = 15² = 225
The sum of the first five positive perfect squares =1²+2²+3²+4²+5²
=1+4+9+16+25
=55
The positive differenece = 225-55=170
Hence the positive difference between the square of the sum of the first five positive integers and the sum of the first five positive perfect squares is 170.
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Answer:
200
Step-by-step explanation:
The square of the sum of the first five positive integers:
(1 + 2 + 3 + 4 + 5)² = 15² = 225
The sum of the first positive perfect square:
1² + 2² + 3² + 4² + 5² = 1 + 4 + 9 + 16 + 25 = 55
225 - 55 = 200
Answers
Answer:
There will be 8 columns
Step-by-step explanation:
So first you get 48 and divide it by 6 then you get 8 as your answer
Answers
Answer:
gºf(x) =
Step-by-step explanation:
Given
f(x) = x2
g(x) = 3x - 1
To find
gºf(x)
To find gºf(x) we will use value of f(x) = in place of in g(x)
lets do that
g(x) = 3x - 1
gºf(x) = 3(f(x)) -1
gºf(x) =
Thus, value of gºf(x) is .