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3 years ago

Sinx cosx tanx=1-cos^2x

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

Tan x = sin x/ cos x. Cos x cancels. Sin^2 x =1-cos^2 x (standard trig identity)

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What is -3(-6+8)^3-2(1-3)^3

marin [14]

Assignment: $\bold{Solve \ Equation: \ -3\left(-6+8\right)^3-2\left(1-3\right)^3}$

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Answer: $\boxed{\bold{-8}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Follow PEMDAS Order Of Operations; Calculate Within Parenthesis

Note: $\bold{PEMDAS: \ Parenthesis, \ Exponents, \ Multiply, \ Divide, \ Add, \ Subtract}$

$\bold{-6+8: \ 2}$

[ Step Two ] Rewrite Equation

$\bold{-3\cdot \:2^3-2\left(1-3\right)^3}$

[ Step Three ] Calculate Within Parenthesis

$\bold{1-3: \ -2}$

[ Step Four ] Rewrite Equation

$\bold{-3\cdot \:2^3-2\left(-2\right)^3}$

[ Step Five ] Calculate Exponents

$\bold{2^3: \ 8}$

[ Step Six ] Rewrite Equation

$\bold{-3\cdot \:8-2\left(-8\right)}$

[ Step Seven ] Multiply

$\bold{2\left(-8\right): \ -16}$

[ Step Eight ] Rewrite Equation

$\bold{-24-\left(-16\right)}$

[ Step Nine ] Subtract

$\bold{-24-\left(-16\right): \ -8}$

[ Step Ten ] Rewrite Equation

$\bold{-8}$

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$\bold{\rightarrow Mordancy \leftarrow}$

8 0

3 years ago

I'm confused on case 3 sea level

Ratling [72]

Try 488 or 3050 but I think it is most likely 488.

4 0

3 years ago

Which graph best represents a kitten's weight for the first two years after birth if, from birth to 2 years old, its weight incr

elena-14-01-66 [18.8K]

Answer:

the answer would be B

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A company needs to replace 27 out of 45 desks in their office. What percent of the desks need to be replaced?

sleet_krkn [62]

60%

Solve by creating a proportion
27/45 = x/100

Cross multiply to get 2700=45x

Divide 45 on both sides to get x=60

6 0

3 years ago

Read 2 more answers

1.) Determine whether each number is irrational or rational.

nalin [4]

Answer:

1/3 is rational its nonterminating but it repeats

6.99999 rational its nonterminating and it repeats also

7.48331 is irrational because its non terminnating and it does not repeat

Step-by-step explanation:

8 0

3 years ago