sin' t- cos“t = 1–2 cos?t
Trigonometric Identities
Trigonometry in mathematics deals with the right-angled triangle’s angles and sides. By trigonometric identities, we mean the identities we use whenever we need to express the various trigonometric functions in terms of an equation.
Inverse Trigonometric Functions
Inverse trigonometric functions are the inverse of normal trigonometric functions. Alternatively denoted as cyclometric or arcus functions, these inverse trigonometric functions exist to counter the basic trigonometric functions, such as sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (cosec). When trigonometric ratios are calculated, the angular values can be calculated with the help of the inverse trigonometric functions.
Verify each of the following trigonometric identities in the same manner that was modeled in class. This includes taking the most complicated side, and rewriting it in equivalent forms until it is identical to the expression on the other side of the equal sign. Do not assume equality by working both sides of the equation. You are trying to prove equality.
**Please answer number 7
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