2 years ago

Write the expression as either the sine, cosine, or tangent of a single angle.

1 answer:

5 0

<span>we know that cos(a - b) = cos(a) cos(b) + sin(a) sin(b)
given a = π/3 and b = π/5
cos(π/3) cos(π/5) + sin(π/3) sin(π/5) = cos((π/3) - (π/5) = cos(2π/15)
hope it helps
</span>

You might be interested in

Gwyneth begins solving for x in the equation 2(x-4)=5(4-2x)+4x.after applying the distributive property and combining like terms

Leya [2.2K]

The answer would be:
8x-4=20-6x

4 0

2 years ago

Chloe wants to cut a 37 in. piece of ribbon into three pieces. The second piece is to be 2 in. longer than the first, and the th

valentinak56 [21]

1st piece = x

2nd piece = x+2

3rd piece = x+2+3 = x+5

37 = x +x+2 + x+5 =

37 = 3x+7

30=3x

x = 30/3 = 10

1st piece = 10 inches

2nd piece = 10+2 = 12 inches

3rd piece = 10+5 = 15 inches

7 0

2 years ago

URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!

Blababa [14]

For this case we have that by definition, the circumference of a circle is given by:

$C = \pi * d$

Where:

d: It is the diameter of the circle

They tell us that:

$d = \frac {35} {2}\\\pi = \frac {22} {7}$

Substituting:

$C = \frac {22} {7} * \frac {35} {2}\\C = \frac {770} {14}\\C = 55 \ cm$

Thus, the circumference of the circle is 55 centimeters.

Answer:

Option B

6 0

2 years ago

Read 2 more answers

Write an expression to represent:One more than the quotient of a number X and 4

astra-53 [7]

Answer:

X/4 +1

Step-by-step explanation:

The word "quotient" tells us that we'll be dividing X and 4.

This can be modeled as X/4

To this quantity, we will be adding 1.

We now get X/4 +1

7 0

2 years ago

Krystal hiked 109 miles last year. Tanji hiked 12 times as many miles as Krystal. How many miles did Tanji hike last year

lapo4ka [179]

Answer:

1308

Step-by-step explanation:

109 x12

8 0

2 years ago