maths trigonometry

if theta = 45, the value of cosec ^ 2 theta is ?

  1. 👍 0
  2. 👎 0
  3. 👁 131
asked by chinnu
  1. cosec(theta)=1/sin(theta)

    sin(45°)= sqrt(2)/2= 1/sqrt(2)



    cosec^2(45°)=[sqrt(2)]^2= 2

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Geography

    cosec theta cosec theta Cosec theta-1 + cosec theta+1 =2sec square theta

    asked by rajput on October 19, 2016
  2. ,math

    show that sec theta(cosec theta) - cot theta = tan theta

    asked by tanya on May 3, 2013
  3. trig

    (sec theta + cosec theta) (sin theta +cos theta) = 2 + sec theta cosec theta

    asked by Jancy on August 20, 2011
  4. Calculus

    I wanted to confirm that I solved these problems correctly (we had to convert the polar curves to Cartesian equations). 1.rcos(theta)=1 x=1 2.r=2*sin(theta)+2*cos(theta) r^2=2rsin(theta)+2rcos(theta) x^2+y^2=2y+2x (a little unsure

    asked by Joshua on March 13, 2009
  5. Maths

    Theta is acute and alpha is obtuse . It is known that sin theta=2/5 and cosec alpha =2. Compute the exact values of a) sec theta b) cos alpha c) tan( theta + alpha)

    asked by Kelly on April 23, 2019
  6. Precalculus(NEED HELP ASAP PLEASE!!)

    cot(theta)= 3 pi < theta < 3pi/2 Find: sin(theta)= -1 ? cos(theta)= -3 ? tan(theta)= 1/3 ? sec(theta)= -1/3 ? csc(theta)= -1 ? That's what I came up with, but they are not correct, PLEASE help me where I went wrong!!

    asked by jh on March 28, 2010
  7. trig

    If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.

    asked by Julise Alliance on February 28, 2013
  8. math

    knowing that 2(theta) can be written as theta + theta, find the expression for sin2(theta) and cos2(theta). Is it 2sin(theta)cos(theta)?

    asked by Steve on March 31, 2013
  9. math;)

    Julia wants to simplify the term sec^2 theta-1/cot^2 theta+1 in a trigonometric identity that she is proving. Which of the following identities should use to help her? Select all that apply. (2 ANSWERS) a. sin^2 theta+cos^2

    asked by girly girl on April 23, 2018
  10. Math

    Which of the following functions have a vertical asymptote for values of theta such that cos theta = 1? Select two answers. y = sin theta y = cos theta y = tan theta y = sec theta y = csc theta y = cot theta I know what all these

    asked by Max on February 10, 2018
  11. Advanced Math

    Identify the polar form of the linear equation 4x+3y=10. x=rcos(theta),y=rsin(theta) 4x+3y=4rcos(theta)+3rsin(theta)=10 r=10/(4cos(theta)+3sin(theta) I got it wrong

    asked by Jon on August 6, 2009

More Similar Questions