3 years ago

I am not quite sure how to do these.

1 answer:

6 0

Sin (Π/2 - theta) = sin(Π/2) * cos(theta) - cos(Π/2) * sin (theta)
and as we know sin(Π/2) =1 , cos(Π/2)=0
so sin(Π/2 - theta) = 1* cos(theta) - 0* sin(theta)= cos(theta)
2nd cos(180+ theta) = cos(180)*cos(theta) - sin(180)* sin(theta)
,,, so , cos(180+theta) = -cos(theta)

You might be interested in

To close on a home purchase you only need to pay the down payment and realtor fees. Please select the best answer from the choic

Nadya [2.5K]

Answer:

False

Step-by-step explanation:

Answered it on E2020

6 0

3 years ago

Read 2 more answers

How to write unit form for (2 tens 1 one) x 10

poizon [28]

Numbers are arranged by their place values. Place values give a quantity of value to a certain digit in a number. Given a number, the rightmost number is the ones place, followed by the tens place, hundreds, thousands, ten thousands, hundred thousands, millions, ten millions, hundred millions, as so on and so forth. The place value of a certain digit is 10 times bigger than its adjacent digit to the right.

So for this problem, all you have to do is multiply the number of units of each place value, then multiple them all by 10.

(2(10) + 1(1))×10
21 × 10 = 210

Therefore, the number is equivalent and written as 210.

3 0

3 years ago

Tommy has 6 more than 3 times the amount of money in his bank account than Judy. Judy has $7500 more than a number in her accoun

balu736 [363]

Answer: Judy: n+7500

Tommy: 3(n+7500)+6

Step-by-step explanation:

4 0

3 years ago

HELP IM ON THE LAST ONE ILL GIVE BRAINLIEST

xxMikexx [17]

Answer:

this is hard what grade is this for

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Simplfiy the expression -5+i/2i

Elodia [21]

-5i/2i. is the answer because all you have to do is add the -5 and the i.

8 0

3 years ago