Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Ifcosec √5;find the value of cot cos (where theta is acute

do you mean cosec(theta)= root 5?
how do you want thw answer? using properties or by basics?



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Cosec Ф = √5
sin Ф = 1/cosec Ф = 1/√5

we know that sin² Ф + cos² Ф = 1
⇒cos² Ф = 1 - sin² Ф
⇒cos Ф = √(1 - sin² Ф)

⇒cos Ф =  \sqrt{1-  (\frac{1}{ \sqrt{5} } })^{2}  = \sqrt{1- \frac{1}{5} } = \sqrt{ \frac{4}{5} } = \frac{2}{ \sqrt{5} }

⇒cos Ф =  \frac{2}{ \sqrt{5} }

cot Ф = cos Ф / sin Ф =  \frac{2/ \sqrt{5} }{1/ \sqrt{5} } = 2
0 0 0
Check your answer for cot
already done brother!!
refresh..you will see the correct one
Okay my mistake
If coesc Ф=√5,then hypotenuse =√5and opp side=1and adjacent side=2
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts