4 years ago

Simplify the trigonometric expression.

1 answer:

3 0

Recall that sin²Ф+cos²Ф=1,
so cos²Ф=1-sin²Ф=(1+sinФ)(1-sinФ)
the (1-sinФ) in the numerator cancel with the (1-sinФ) in the denominator, the result is 1+sinФ

You might be interested in

Identify the graph of the inequality from the given description. x is negative.

AveGali [126]

Shaded region is when x is negative

4 0

3 years ago

Solve for x Need help with this last question

Serhud [2]

Answer:

x = 8

Step-by-step explanation:

2(78°) = 20x - 4

156 = 20x - 4

add 4 to each side of the equation:

160 = 20x

divide both sides by 20:

x = 8

6 0

3 years ago

the deli scale weighs meat and cheese in hundredths of a pound, same put 5/10 pound of pepperoni on the deli scale .what weight

Yakvenalex [24]

50/100 on the deli scale

7 0

3 years ago

Read 2 more answers

Write an expression for the net change in charge if two electrons are added to each of six atoms in a group. Also, write an expr

dusya [7]

Given:

Two electrons are added to each of six atoms in a group.

To find:

The expression for the net change in charge.

Solution:

Charge of atoms = Number protons - Number of electrons.

Let number of atoms be x.

6 atoms = 2 electrons added

1 atom = $\dfrac{2}{6}$ electrons added

1 atom = $\dfrac{1}{3}$ electrons added

x atoms = $\dfrac{1}{3}x$ electrons added

Therefore, the net change in charge is represented by the expression $-\dfrac{1}{3}x$ because we subtract number of electrons to find atom charge, where, x is the number of atoms.