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Popular >

-3sin(90)

Solution

- 3 sin (9 0^{\circ})

Solution

- 3

Solution steps

- 3 sin (9 0^{\circ})

Use the following trivial identity:

sin (9 0^{\circ}) = 1

sin (9 0^{\circ})

sin (x)

periodicity table with

36 0^{\circ} n

cycle:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= 1

= - 3 \cdot 1

Simplify

= - 3

Popular Examples

arcsin(0.875)(0.643)

arcsin (0.875) (0.643)

(csc(10))/(cot(50))

\frac{csc ( 1 0 ^{\circ} )}{cot ( 5 0 ^{\circ} )}

arcsin^2((sqrt(2))/2)

arcsin^{2} (\frac{2}{2})

(1.5)/(cos(2.96))

\frac{1.5}{cos ( 2.9 6 ^{\circ} )}

1000+100sin((20pi)/(12))

1000 + 100 sin (\frac{20 π}{12})

Frequently Asked Questions (FAQ)

What is the value of -3sin(90) ?
The value of -3sin(90) is -3