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KIM [24]
4 years ago
15

What is the value of sin-1(1)?

Mathematics
1 answer:
noname [10]4 years ago
3 0

Answer:

-π/2

Step-by-step explanation:

EDGE

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Prove: cos(3x)=sin(2x)
Vesnalui [34]

Answer:

Step-by-step explanation:

Step-by-step explanation:

By taking ( x = 18°)

<u>L.H.S</u>

cos(3x)=sin(2x)

cos(3x) = cos( 3X18°)= cos (54°)

            = cos[ 90° - (2x18°)]           ∵[  90°- (2x18°) = 54°]

            = ∴ sin ( 2x18°)

      As (x = 18°)

            = sin (2x) = R.H.S

7 0
3 years ago
Solve Two Step Eqautions
VashaNatasha [74]
1. n=7
2. w= 7.75 
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4. y = 66
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4 0
3 years ago
a trapezoid with an area of 166.75 in has bases that measure 21in and 8 in find the height of the trapezoid
alisha [4.7K]

Answer:

height = 11.5 in

Step-by-step explanation:

The area (A) of a trapezoid is calculated using the formula

A = \frac{1}{2} h(a + b)

where h is the height and a, b the bases

here a = 21, b = 8 and A = 166.75, hence

\frac{1}{2} h(21 + 8) = 166.75

Multiply both sides by 2 to eliminate the fraction

29h = 333.5 ( divide both sides by 29 )

h = 11.5 in

6 0
3 years ago
Barbara has $70.00 in her pocket and a $20 gift card. Which purchase will she be able to make without having to use her credit c
suter [353]
Yes depending on her purchase. If it is over 90.00 dollars then no she will not.
3 0
3 years ago
Helllllllllllllllpppppppppp
Leona [35]

Answer:

bird, sea lion, fish

Step-by-step explanation:

-0.5 sea lion, -1.2 fish, 4.25 bird

8 0
2 years ago
Read 2 more answers
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