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How do you calculate cos squared theta equals one minus twelve thirteenths squared?
Wiki User
∙ 12y ago
Writing x instead of theta, cos2x = 1 - (12/13)2 = 1 - 144/169 = 25/169 = (5/13)2
So cos(x) = ± 5/13
so that x = cos-1(5/13) or cos-1(-5/13)
And then, depending on the range of x, you have solutions for x. A calculator will only give you the principal solutions, though.
Wiki User
∙ 12y ago
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How is twelve thirteenths written as a percent?
1200/13 = 92.31%
What is three fourths times twelve thirteenths?
Expressed in its simplest form, 3/4 x 12/13 = 9/13 or nine thirteenths.
How do you solve x squared minus x minus twelve by Euclid?
Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
What are the solutions to x squared minus twelve x plus sixteen equals zero?
Quadratic formula gives roots as 1.53 and 10.47 (to nearest hundredth.)
How many in 12 dozen?
A dozen is twelve, so twelve dozen equals twelve times twelve.
Is twelve thirteenths bigger or one third?
Twelve thirteenths is larger
What Twelve squared equals is?
Twelve squared is a dozen dozen, or one gross. 122 = 12 times 12 = 144
When you subtract 2 square numbers the answer is twelve?
4 squared minus 2 squared equals 12
How is twelve thirteenths written as a percent?
1200/13 = 92.31%
What is three fourths times twelve thirteenths?
Expressed in its simplest form, 3/4 x 12/13 = 9/13 or nine thirteenths.
Twelve squared plus twelve?
24
What is twelve thirteenths added to seven eights?
96/104 + 91/104 = 187/104 or 1 and 83/104
What is twelve squared?
It is: 144
How many squared feet are in twelve squared inches?
one.
What is the difference between a number squared and the number if the number is 4?
Twelve. Four squared is sixteen less four is twelve.
What are the solutions to x squared minus twelve x plus sixteen equals zero?
Quadratic formula gives roots as 1.53 and 10.47 (to nearest hundredth.)
How do you solve x squared minus x minus twelve by Euclid?
Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
