Math
 👍 0
 👎 0
 👁 202
Respond to this Question
Similar Questions

Math, please help
Which of the following are trigonometric identities? (Can be more then one answer) tanx cosx cscx = 1 secxcosx/secs=sin^2x 1tanxtany=cos(x+y)/cosxcosy 4cosx sinx = 2cosx + 1  2sinx Find all solutions to the equation cosx
asked by Jill on January 14, 2014 
Trig.......
I need to prove that the following is true. Thanks (2tanx /1tan^x)+(1/2cos^2x1)= (cosx+sinx)/(cosx  sinx) and thanks ........... check your typing. I tried 30º, the two sides are not equal, they differ by 1 oh , thank you Mr
asked by abdo on April 18, 2007 
Trigonometry
4. Find the exact value for sin(x+y) if sinx=4/5 and cos y = 15/17. Angles x and y are in the fourth quadrant. 5. Find the exact value for cos 165degrees using the halfangle identity. 1. Solve: 2 cos^2x  3 cosx + 1 = 0 for 0
asked by Tiffany Enlow on April 10, 2009 
Calculus (area of base and volume of solid)
Can you check my work and see if I did the problem correctly? Thanks! A solid with a base formed by intersecting sine and cosine curves and built up with semicircular crosssections perpendicular to the xaxis. Find the area of
asked by Anonymous on May 22, 2008 
calculus
find all extrema in the interval [0, 2pi] if y=sinx + cosx and also a certain item sells for $30. if the cost of producing this item is given by C=.05^3 + 100, find the mariginal profit when x=10.
asked by anonymous on November 19, 2007

Calculus
1. Locate the absolute extrema of the function f(x)=cos(pi*x) on the closed interval [0,1/2]. 2. Determine whether Rolle's Theorem applied to the function f(x)=x^2+6x+8 on the closed interval[4,2]. If Rolle's Theorem can be
asked by Cynthia on October 30, 2012 
maths need help
using the interval [0,2pi] and f(x) = sinx + cosx, obtain c £ (0,2pi) that satisfies the conclusion of Rolle's theorem where £ mean element of and C means number show step
asked by dud on October 1, 2016 
Math Help
Hello! Can someone please check and see if I did this right? Thanks! :) Directions: Find the exact solutions of the equation in the interval [0,2pi] cos2x+sinx=0 My answer: cos2x+sinx=cos^2xsin^2x+sinx =1sin^2xsin^2x+sinx
asked by Maggie on February 2, 2015 
Precalculus
Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π). 8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve algebraically for exact solutions in the interval [0,2π). Use your grapher only to support your
asked by Anonymous on January 3, 2013 
PreCalc
Trigonometric Identities Prove: (tanx + secx 1)/(tanx  secx + 1)= tanx + secx My work so far: (sinx/cosx + 1/cosx + cosx/cosx)/(sinx/cos x  1/cosx + cosx/cosx)= tanx + cosx (just working on the left side) ((sinx + 1 
asked by Dave on January 2, 2007 
Precalculus/Trig
I can't seem to prove these trig identities and would really appreciate help: 1. cosx + 1/sin^3x = cscx/1  cosx I changed the 1: cosx/sin^3x + sin^3x/sin^3x = cscx/1cosx Simplified: cosx + sin^3x/sin^3x = cscx/1cosx I don't
asked by Heather on August 15, 2014
You can view more similar questions or ask a new question.