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o-na [289]
3 years ago
5

Prove the following statement (1-sinA)×sin²A/(1+cosA)×cos²A=1-cosA/1+sinA​

Mathematics
1 answer:
shepuryov [24]3 years ago
4 0

Answer:

<u>(1-sinA) * Sin²A</u>

(1+cosA) * Cos²A

<u>(1-sinA) * (1-Cos²A)</u>

(1+cosA) * (1-Sin²A)

<u>(1-sinA) * (1-CosA)(1+CosA)</u>

(1+cosA) * (1-SinA) (1+SinA)

<u>(1-CosA)</u>

(1+SinA)

proved

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Helppp find the value of y lamooooo
garik1379 [7]

Answer:

4x-13 = 2x+9 ( i think it was exterior angle property i dont remember but its true)

so, solving that eq,

4x-2x = 9+13 (grouping variables and constants)

2x=22

x=11

also, 2x+9 and 3y+2 are on a transversal, and are supplementary angles (add up to 180°)

so, solving for x in 2x+9,

2(11)+9 = 22+9 = 31°

now, 31 + 3y+2 =  180

3y = 180 - 33

y = 147/3 = 49

(hoping you understood the calculations :)

6 0
3 years ago
.Fred is making a bouquet of carnations and roses. The carnations cost $5.25 in all. The roses cost $1.68 each. How many roses d
Vinil7 [7]

Answer:

8 roses

Step-by-step explanation:

1)18.69-5.25=13.44

because you are trying to find the cost of the roses

2)13.44/1.68=8

because you already know how much the roses cost for each rose and all together.

3 0
3 years ago
3x-3y-5z=-24 <br>6x+y-z=-27<br>-3x+2y+6z=21<br>​
Harman [31]

Answer:

Bananas are curved because they grow towards the sun ☀️

Step-by-step explanation:

3 0
3 years ago
There are a total of 63 bikes at a sports shop. If 18 bikes are blue, what is the ratio of blue bikes to black bikes?
prohojiy [21]

Answer:

45 to 18 it's easy

Step-by-step explanation:

subtract 18 from 63 and there is your ratio

3 0
3 years ago
Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what
brilliants [131]

Answer:

Area of the penny = 30 square inches

Step-by-step explanation:

Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what is the area of each pennant in square inches?

The pennant is triangular in shape. Hence:

Area of a Triangle = 1/2× Base × Height

Base of the pennant = 5 inches

Height = 12 inches

Area of the pennant = 1/2 × 5 inches × 12 inches

= 30 square inches

3 0
3 years ago
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