Thursday

December 18, 2014

December 18, 2014

Posted by **Allison** on Thursday, December 15, 2011 at 7:28pm.

sin è = 0.1

cos è =

tan è =

cot è =

csc è =

sec è =

- trig (pre-cal class) -
**Willie**, Thursday, December 15, 2011 at 10:46pmIf you use a calculator with an inverse sine function, you can enter sin^-1 (0.1) = and find out what the acute angle value is. Then you can use that and plug it into the cos, tan, cot, csc, and sec functions of your calculator.

If you don't have a calculator, use this fact: (cos a)^2 + (sin a)^2 = 1.

Solve to find (cos a)^2 = 1 - (sin a)^2

so cos a = sqrt (1 - [sin a]^2) = sqrt (1 - (0.1)^2) = sqrt (1 - 0.01) = sqrt 0.99.

Then you can find tan a = sin a / cos a.

The other ratios are reciprocals. You can find formulas for them in your text and use the above results in your calculations.

**Answer this Question**

**Related Questions**

Pre-Cal - Suppose è is an acute angle of a right triangle. For this function, ...

trig - angle a is acute and sin = u. find the other five trigonometric functions...

trig - Cos theta= 1/3, find the remaining trigonometric functions of the acute ...

math - trig - Suppose ABC is a right triangle with sides of lengths a, b, and c ...

trig - Use a table of trigonometric values to find the angle è in the right ...

Math(Correction) - Use the given function values and trigonometric identities (...

trig - Use a table of trigonometric values to find the angle θ in the right...

Algebra 2 - Can someone help me figure these out? I think if someone can explain...

Algebra 2 - Can someone help me figure these out? I think if someone can explain...

Math(Correction) - Use the given function values and trigonometric identities (...