- #1
krystalanderson
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Can anyone help me solve the following problems?
sec theta -1/1-cos theta = sec theta
tan (pie/2 - theta) tan theta =1
Thanks
sec theta -1/1-cos theta = sec theta
tan (pie/2 - theta) tan theta =1
Thanks
bomb said:can anyone help me to solve this problem?
(tanѲ/1-cotѲ)+(cotѲ/1-tanѲ)=1+secѲcscѲ
Trigonometric identities are equations that involve trigonometric functions and are true for all values of the variables. These identities are useful for simplifying and solving trigonometric equations.
A trigonometric identity is always true, while an equation may or may not be true depending on the values of the variables. In other words, an identity is an equality that is always true, while an equation is a statement that is only true for specific values.
There are several methods for proving trigonometric identities, including using algebraic manipulations, the Pythagorean identities, and the double angle or half angle identities. It is also helpful to work with both sides of the equation and simplify them separately before showing that they are equal.
Yes, trigonometric identities can be used to solve equations, especially when the equations involve trigonometric functions. By manipulating the equations using identities, it is possible to simplify and solve for the unknown variable.
You can find a list of common trigonometric identities in a trigonometry textbook or online. It is also helpful to memorize the basic identities, such as the Pythagorean identities, sum and difference identities, and double and half angle identities, to make solving problems easier.