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Georgia [21]
3 years ago
14

What is cos 0 when sin 0 = 2/5

Mathematics
1 answer:
Goshia [24]3 years ago
7 0

Answer:

cos 0 = 1

.................

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What is the value of the expression?<br><br> 5^2 - 3^0
Vlad1618 [11]
5^2 = 25
3^0 = 1 (anything that is exponented by 0 is 1)

25 - 1 = 24

24 is your answer

hope this helps
5 0
3 years ago
Read 2 more answers
Which is the zero of the function f(x)=(x+3) (2x-1)(x+2) ?
Scrat [10]

Answer:

x= -3     x = 1/2     x=-2

Step-by-step explanation:

f(x)=(x+3) (2x-1)(x+2)

Set equal to zero

0 =(x+3) (2x-1)(x+2)

Using the zero product property

x+3 =0   2x-1 =0    x+2 =0

x= -3    2x =1       x = -2

x= -3     x = 1/2     x=-2

6 0
3 years ago
What if this function simplified?
almond37 [142]

Hi!

Let's first expand the cotangent of theta.

You'll probably know that tangent will be "y/x", or \frac{sin(x)}{cos(x)}, and cotangent is the reciprocal of this, meaning that it is "x/y" or \frac{cos(x)}{sin(x)}.

That means that we are now given this equation.

cos(x)\frac{cos(x)}{sin(x)}+sin(x)

That'll multiply to:

\frac{cos^2(x)}{sin(x)}+sin(x)

We'll want a common denominator to add by multiplying sin(x) to both top and bottom of the second term:

\frac{cos^2(x)}{sin(x)}+\frac{sin^2(x)}{sin(x)}

\frac{cos^2(x)+sin^2(x)}{sin(x)}

Pythagorean Identity states that sin^2(x)+cos^2(x)=1, so substitute that in:

\frac{1}{sin(x)}

Which simplifies to:

csc(x)

Hope this helps!

7 0
3 years ago
Can someone help me with this?
mihalych1998 [28]
Can you put a more clear pic up hard to see
4 0
3 years ago
Please thebecks please
sweet-ann [11.9K]

Answer:

1.8

Step-by-step explanation:

If we know Xin ordered 5 identical pieces of bread, this must mean that each one weighs the same

By dividing the 9 pounds with 5 (the amount of bread) we will get 1.8

So each bread is 1.8

but if u want to check the answer then we can multiply 1.8 with the 5 loaves of bread and it will result in 9

5 0
3 years ago
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