3 years ago

Prove the identity cot^2x/cscx+1=1-sinx/sinx

1 answer:

6 0

Cot²x/csc+1
=(csc²x-1)/(csc+1)

=((1/sin²x)-1)/((1/sinx)+1)

=((1-sin²x)/sin²x)/((1+sinx)/sinx)

=(1-sin²x)/(1+sinx)

=(1+sinx)(1-sinx)/sinx(1+sinx)

=(1-sinx)/sinx

You might be interested in

Greater than, less than, or equal to...<br> 400 mm 4m

Verizon [17]

If I remember correctly it is equal

6 0

2 years ago

If it's possible to tell, decide if a and b are positive or negative: a-3>b-3 and b>4

Svetllana [295]

Answer:

a and b are positive

Step-by-step explanation:

We are given that

$a-3>b-3$

$b>4$

We have to find that a and b are positive or negative.

We have

$b>4$

It means b is positive and greater than 4.

$a-3>b-3$

Adding 3 on both sides

$a-3+3>b-3+3$

$a>b>4$

$\implies a>4$

Hence, a is positive and greater than 4.

Therefore, a and b are positive

6 0

2 years ago

Solve systems using substitution PLEASE

skad [1K]

X=5. y=35.

To solve, substitute the 7x into the equation for y. Solve. You get x=5. Then put that into your first equation. Solve. You get y=35. Hope that helps!!

4 0

2 years ago

7. Ben's earnings for work he did from Monday through Saturday were: $78,

Agata [3.3K]

Answer:Average daily pay =$90

Step-by-step explanation:

Step 1

Formulae

Average daily earnings = Total amount of earning from Monday through Saturday/ number of days

Step 2

Monday $78,

Tuesday $94

Wednesday $115

Thursday $108

Friday $67

Saturday $78

Total earnings for Ben = $540

Average daily pay= $540/6 ==$90

8 0

3 years ago

Tom makes 145.80 in 3 days. How much does he make in 2 days

ArbitrLikvidat [17]

Multiply 145.80 by 2/3, get $97.20 in two days.

6 0

3 years ago