Post a New Question

Trig

posted by .

Eight Fundamental Identities

Sec thada - Cos thada

How do I do this?

  • Meaning what? -

    There is no equal sign so no identity.
    sec t = 1/cos t
    by definition if that helps

  • Trig -

    sec ( theta ) = 1 / cos ( theta )


    sec ( theta ) - cos( theta ) =

    [ 1 / cos ( theta ) ] - cos ( theta ) =

    [ 1 - cos ^ 2 ( theta )] / cos ( theta ) =

    sin ^ 2 ( theta) / cos ( theta ) =

    sin ( theta ) * sin ( theta ) / cos ( theta ) =

    [ sin ( theta ) / cos ( theta ) ] * sin ( theta ) =

    tan ( theta ) * sin ( theta )

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Trigonometry

    What is cos (pi/2 - x) secx using the fundamental identities to simplify the expression. I think I have the right answer but I want to check to make sure. Well, cos (pi/2 - x) is something you should've seen already. It's just another …
  2. Trig

    Are any of these three problems identities?
  3. Trig

    Are any of these three problems identities?
  4. Math(Please check)

    Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?
  5. Trig

    How do I find the quadrant in which angle thada may lie if cos thada > 0 and tan thada < 0?
  6. trig

    How do I name the quadrand in which angle thada may lie if sec thada > 0 and tan thada > 0?
  7. Math C30

    Eight Fundamental Identities Sec thada - Cos thada- on one side tan thada sin thada- on the other side How do you do this ?
  8. Trigonometry

    Simplify each expression using the fundamental identities. 1. Sec x csc x / sec^2x+csc^2x 2. Sec x + tan x / sec x + tan x - cos x
  9. Pre Calculus

    Multiply; then use fundamental identities to simplify the expression below and determine which of the following is not equivalent. (sin x + cos x) ^2 a. 1+2sinxcosx b. sec^2x−tan^2x+2cosxsinx c.sec x + 2 sin x/sec x d. sin^2x+cos^2x …
  10. Studying for math test

    Multiply; then use fundamental identities to simplify the expression below and determine which of the following is not equivalent. (sin x + cos x) ^2 a. 1+2sinxcosx b. sec^2x−tan^2x+2cosxsinx c. sec x + 2 sin x/sec x d. sin^2x+cos^2x …

More Similar Questions

Post a New Question