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2 years ago

V1 - 2 sin cos 0 = cos 0 - sin

1 answer:

kramer2 years ago

4 0

$\sqrt{1 - 2sin θ \cosθ } = \sqrt{ {sin}^{2} θ + {cos}^{2}θ - 2 sinθcosθ } = \sqrt{ {(cosθ - sinθ) }^{2} } = cosθ - sinθ$

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Please help, no links

Colt1911 [192]

Answer:

m<1=90°

m<2=38°

hope this helps

4 0

2 years ago

Rashid can do a piece of work in 8 days, which Tipu can finish in 12 days. If they work at it on alternate days with Rashid begi

algol [13]

Answer:

The work will be finished in 10 days.

Step-by-step explanation:

Rashid can do a piece of work in 8 days

This means that each day he works, Rashid does $\frac{1}{8}$ of the work.

Tipu can finish in 12 days.

This means that each day he works, Tipu does $\frac{1}{12}$ of the work.

Each 2 days:

Each 2 days they work, the amount done is given by:

$\frac{1}{8} + \frac{1}{12} = \frac{3 + 2}{24} = \frac{5}{24}$

Each 2 days, 5/24 of the work is done:

The number of periods of 2 days that is needed to finish the work(100% = 1 completed), is given by:

$d = \frac{1}{\frac{5}{24}} = \frac{24}{5} = 4.8$

2*4.8 = 9.6

Rounding up

The work will be finished in 10 days.

3 0

2 years ago

1) Nishi has a total of 18 coins that are nickels and

DochEvi [55]

I believe it’s 3 pennies and 15 nickels yea it is because
3*0.01=0.03, and
15*0.05=0.75 and
0.75+0.03=0.78 and
3+15=18.

Did I confuse you or no? Sorry if I did.

3 0

2 years ago

18 is 32% of what number?

drek231 [11]

Answer is below :-) .......

7 0

2 years ago

Read 2 more answers

How do you know if two lines are parallel without a equation?

sesenic [268]

If they do not have solutions (intersections).
If they do not have intersections then they must be parallel. Imagine it on the graph

7 0

2 years ago

V1 - 2 sin cos 0 = cos 0 - sin​

V1 - 2 sin cos 0 = cos 0 - sin