0.10
sin(0) = 0, sin(90) = 1, sin(180) = 0, sin (270) = -1 cos(0) = 1, cos(90) = 0, cos(180) = -1, cos (270) = 0 tan(0) = 0, tan (180) = 0. cosec(90) = 1, cosec(270) = -1 sec(0) = 1, sec(180) = -1 cot(90)= 0, cot(270) = 0 The rest of them: tan(90), tan (270) cosec(0), cosec(180) sec(90), sec(270) cot(0), cot(180) are not defined since they entail division by zero.
The sin of 30 is sqr(3)/2 so 6 * sqr(30) is 6 * sqr(3)/2 this is also 6/2 * sqr(3) which simplifies to 3 * sqr(3) which is approximately 5.19615242
A roof angle of 6 degrees = 1.26 / 12 rise or pitch.
You need to know the trigonometric formulae for sin and cos of compound angles. sin(x+y) = sin(x)*cos(y)+cos(x)*sin(y) and cos(x+y) = cos(x)*cos(y) - sin(x)*sin(y) Using these, y = x implies that sin(2x) = sin(x+x) = 2*sin(x)cos(x) and cos(2x) = cos(x+x) = cos^2(x) - sin^2(x) Next, the triple angle formulae are: sin(3x) = sin(2x + x) = 3*sin(x) - 4*sin^3(x) and cos(3x) = 4*cos^3(x) - 3*cos(x) Then the left hand side = 2*[3*sin(x) - 4*sin^3(x)]/sin(x) + 2*[4*cos^3(x) - 3*cos(x)]/cos(x) = 6 - 8*sin^2(x) + 8cos^2(x) - 6 = 8*[cos^2(x) - sin^2(x)] = 8*cos(2x) = right hand side.
1
6.00
6.00
5.61
Points: (6, 5) and (-3, -8) Distance: 15.81 to the nearest hundredth
4.14
0.47
To round 12.456 to the nearest hundredth, we look at the digit in the thousandth place, which is 6. Since 6 is equal to or greater than 5, we round up the digit in the hundredth place, which is 5. Therefore, 12.456 rounded to the nearest hundredth is 12.46.
12.66
To round 4.568 to the nearest hundredth, we look at the digit in the thousandths place, which is 6. Since 6 is equal to or greater than 5, we round up. Therefore, 4.568 rounded to the nearest hundredth is 4.57.
6
To round 9364 to the nearest hundredth, we look at the digit in the hundredth's place, which is 6. Since 6 is greater than 5, we round up the digit in the tenth's place (3) by 1, making it 4. Therefore, 9364 rounded to the nearest hundredth is 9400.
6/11 rounded to the nearest hundredths place is 0.55