3 years ago

Sin ( 90 + theta ) = cos theta prove^

1 answer:

5 0

We will use additional formula:
sin ( 90°+ theta ) = sin 90° * cos(theta) + cos 90° * sin(theta)=
= 1 * cos(theta) + 0 * sin(theta)= cos (theta) It is proved.

You might be interested in

What is the solution to 2x-8<12 ? <br> A. X<2<br> B. X<8 <br> C. X<10<br> D. X<40

Maurinko [17]

2x - 8 < 12
2x < 12 + 8
2x < 20
x < 20/2
x < 10

3 0

3 years ago

What is the relationship between the 6s in the number 660,472

Mrac [35]

They are closer in values.

3 0

3 years ago

Read 2 more answers

What number set does 0 belong to

GuDViN [60]

Whole, integer, and rational

3 0

3 years ago

El acento está en la

Nastasia [14]

Answer:

el acento es donde está las tildes

5 0

2 years ago

18 2/5 - n = -10 1/3

Wewaii [24]

Answer:

The answer is $n=28\frac{11}{15}$ .

Step-by-step explanation:

Given:

18 2/5 - n = -10 1/3.

Now, to solve the equation:

$18\frac{2}{5} - n = -10 \frac{1}{3}$

Converting the mixed fractions to improper:

⇒ $\frac{92}{5} -n=-\frac{31}{3}$

Moving the numbers on one side and variable to the other:

⇒ $\frac{92}{5} +\frac{31}{3}=n$

Now, solving the factions:

⇒ $\frac{92\times 3+31\times 5}{15}=n$

⇒ $\frac{276+155}{15}=n$

⇒ $\frac{431}{15}=n$

⇒ $28\frac{11}{15}=n$

Therefore, the answer is $n=28\frac{11}{15}$ .

3 0

3 years ago