Ask a New Question
Menu

8sin^2x+sinxcosx+cos^2x=4

  1. 8sin^2x+sinxcosx+cos^2x=4
    1. answers icon 2 answers
    2. LiNnda asked by LiNnda
    3. views icon 4,280 views
  2. I have to find an exact solutions on the interval [0,pi) for both of these problems--1) 2sin2x = sqrtx and 2) 1-2sqrt2 sinxcosx
    1. answers icon 0 answers
    2. kristie asked by kristie
    3. views icon 708 views
  3. Prove the identity:4x=1-8sin^2x+8sin^4x
    1. answers icon 1 answer
    2. PRELUDE asked by PRELUDE
    3. views icon 901 views
  4. If we are given 8sin((pi/6)(x+2))+16=20the answers are -1 and 3 because 1/2 can be pi/6 or 5pi/6. However, if y = 10
    1. answers icon 0 answers
    2. Ashley asked by Ashley
    3. views icon 443 views
  5. Please take a look at DEVON's trig equation at 9:14I must be missing something obvious. If the second had been 3sin 2x it would
    1. answers icon 0 answers
    2. Reiny asked by Reiny
    3. views icon 707 views
  6. Prove the following identity:1/tanx + tanx = 1/sinxcosx I can't seem to prove it. This is my work, I must've made a mistake
    1. answers icon 1 answer
    2. Heather asked by Heather
    3. views icon 819 views
  7. this is for proving identies and its fustrating i can't solve this one question! lolx=feta (btw the first part is supposed to be
    1. answers icon 3 answers
    2. diana asked by diana
    3. views icon 554 views
  8. How do you verify:1.) sinxcosx+sinx^3secx=tanx 2.) (secx+tanx)/(secx-tan)=(secx+tanx)^2 I tried starting from the left on both
    1. answers icon 0 answers
    2. Corin asked by Corin
    3. views icon 886 views
  9. sin^4x-cos^4x=7/2(sinxcosx)
    1. answers icon 4 answers
    2. Dexi asked by Dexi
    3. views icon 2,132 views
  10. sinxcosx=0,x=?
    1. answers icon 2 answers
    2. raygene asked by raygene
    3. views icon 450 views