Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Which of the following is not correct? A. sin θ = – 1/5 B. cos θ = 1 C. sec θ = ½ D. tan θ = 20

Which of the following is not correct?

A. \sin \theta = - 1/5 \\\\

B.\cos \theta = 1\\\\

C. sec \theta = 1/2

D. \tan \theta = 20

Answers (1)

The answer is the option (c) 

\\ \sin \theta = - \frac{1}{5}   is correct since - 1 \leq \sin \theta \leq 1 \\\\

\\ \cos \theta =1 \text{is true for} \theta =1 \\\\ ~ sec \theta = - \frac{1}{2}~~~~ \\\\ \cos \theta =2 \text{is not correct as }- 1 \leq \cos \theta \leq 1 \\\\

Posted by

infoexpert21

View full answer

Similar Questions

Latest Question