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saul85 [17]
3 years ago
15

Simplify and write the trigonometric expression in terms of sine and cosine:

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

f(x) = + cosx or - cosx

Step-by-step explanation:

(2+tan^2x/sec^2x) -1 =(f(x))^2​

=(( 1 + sec^2x)/sec^2x) -1

= 1 / sec^2x + 1 - 1

=  1 / sec^2x

= cos^2x

(f(x))^2​ = cos^2x

f(x) = + cosx or - cosx

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Pleas help me quickly !
Maksim231197 [3]

Answer:

-36

Step-by-step explanation:

-(36/-6) to the power of 2 is -36.

3 0
3 years ago
Read 2 more answers
Please help du tomorrow
Leokris [45]
The perimeter of the first figure is 34 cm and the area is 64 cm².
The perimeter of the second figure is 38 cm and the area is 60 cm².
The perimeter of the third figure is 30 cm and the area is 36 cm².
The perimeter of the fourth figure is 72 cm and the area is 200 cm².
The perimeter of the fifth figure is 30 cm and the area is 36 cm².

To find the perimeter of each, we add the area of all sides.  For the first figure, the missing sides are 1 cm and 6 cm.  To find the area, we have two rectangles whose dimensions are 6x10 and 1x4.

For the second figure, the missing sides are 4 cm and 3 cm.  To find the area, we have two rectangles whose dimensions are 4x12 and 3x4.

For the third figure, the missing sides are 3 cm, 3 cm and 8 cm.  To find the area, we have two rectangles whose dimensions are 4x3 and 3x8.

For the fourth figure, the missing sides are 10 cm, 10 cm, 6 cm and 6 cm.  To find the area, we have two squares whose dimensions are 10x10.

For the fifth figure, the missing sides are 3 cm and 9 cm.  To find the area, we have two rectangles whose dimensions are 3x6 and 6x3.
3 0
3 years ago
Geometry Grade 10
Tom [10]

Answer:

8, 4, and 2 can not be the lengths of the sides of a triangle.

Step-by-step explanation:

If a and b are the two side's length of a triangle then the length of the third line (c) will be governed by the relation  

(a+ b) > c > (a - b)

Now, the two sides length of a triangle are given by 8 and 4 then the length of the third side (x) will be given by  

(8 + 4) > x > (8 - 4)

⇒ 12 > x > 4 ........... (1)

But here the third side length is 2 which does not satisfy the above condition (1).

Hence, a triangle can not have side lengths 8, 4, and 2. (Answer)

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3 years ago
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Anit [1.1K]

Answer:

A reflection of a point over the y -axis is shown. The rule for a reflection over the y -axis is (x,y)→(−x,y) .

Step-by-step explanation:

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2 years ago
Graph the inequality below on the number line.<br><br> x&gt;-6
lina2011 [118]

Plot an <u>open hole</u> at -6; shade to the <u>right</u>

The open hole is because we don't include -6 itself.

The shading to the right indicates all numbers larger than -6.

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3 years ago
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