algebra

Can someone please help me do this problem? That would be great!

Simplify the expression:

sin theta + cos theta * cot theta

I'll use A for theta.

Cot A = sin A / cos A

Therefore:

sin A + (cos A * sin A / cos A) =

sin A + sin A =

2 sin A

I hope this will help.

in my algebra book, it says that Cot A=cos A/sin A, not sin A/cos A

That changes things a bit, doesn't it?

cot A = cos A / sin A

sin^2 A + cos^2 A = 1

Therefore:

sin A + (cos A * cos A / sin A) =

sin A + (cos^2A / sin A) =

Using sin A as a common denominator:

(sin^2 A / sin A) + (cos^2 A / sin A) =

(sin^2 A + cos^2 A) / sin A =

1 / sin A

Sorry for the error.



thank you!!

  1. 👍 0
  2. 👎 0
  3. 👁 436

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    1. Simplify the expression: 4√18+5√32 A.45√2 B.32√2 C.116√2 D.9√50 2. Simplify the expression: 7√5-3√80 A.-5√5 B.-4√75 C.-5 D.4√-75 3. Simplify the expression: √21(√3+√14) A.9√7-49√6 B.2√6+√35

    asked by GummyBears16 on April 5, 2016
  2. algebra

    am I right? 1. Simplify radical expression sqrt 50 5 sqrt ^2*** 2 sqrt ^5 5 sqrt ^10 5 2. Simplify the radical expression sqrt 56x^2 28x 2x sqrt 14*** 2x sqrt 7 sqrt 14x2 3. Simplify the radical expression. sqrt 490y^5w^6 2 sqrt

    asked by Carl Wheezer on May 7, 2017
  3. Pre-Calc

    1) Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number. cos 12° cos 18° − sin 12° sin 18° And Find its exact value. 2) Use an Addition or Subtraction Formula to write the

    asked by Alyssa on April 13, 2015
  4. Pre-Calc

    I am really struggling with how to do these problems, I posted them a few minutes ago but the answers/work shown was incorrect. 1) a) Use an Addition or Subtraction Formula to write the expression as a trigonometric function of

    asked by Alyssa on April 13, 2015
  5. Precalculus check answers help!

    1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.)

    asked by Kelsey on May 30, 2012
  1. urgent math

    1. Simplify the expression 7^9/7^3 a.7^3*** b.7^6 c.7^12 d.1^6 2. Simplify the expression z^8/z^12 a.z^20 b.z^4 c.1/z^-4 d.1/z^4 3. Simplify the expression (-3^4)/(-3^4 a.(-3)^1 b.0 c.1 d.(-3)^8 4.Which expressions can be

    asked by Connexus on May 3, 2016
  2. algebra

    For questions 1-3, simplify the polynomial. 1. 14x^2 + 4 + 3x - 12x^2 - 3 + 11x 2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9 3. 2x^2 + 6x - 7x + 8 - 3x^2 + 1 4. In the expression -7x - 3x^2 + 5, what is the coefficient of x? Add or subtract.

    asked by Please help on May 22, 2019
  3. Trigonometry

    Add and subtract as indicated. Then simplify your answer if possible. Leave answer in terms of sin(θ) and/or cos(θ). (Remember to enter trigonometric powers such as sin2(x) as (sin(x))2.) 1/sin-sin=

    asked by joshua on January 30, 2012
  4. math

    Enter your answer and show all steps that you use to solve this problem in the space provided. Simplify the expression. 6h - 11 - h + 15 Enter your answer and show all steps that you use to solve this problem in the space

    asked by connexus on October 17, 2019
  5. 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.

    asked by Jessica Maths on July 11, 2016
  6. trig

    simplify the expression. cos^2x+sin^2x/cot^2x-csc^2x

    asked by tony on July 14, 2013

You can view more similar questions or ask a new question.