Secant (sec), cosecant (csc) and cotangent (cot) example | Trigonometry | Khan Academy

Worked example where we walk through finding the major trig ratios

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[mitchmiles]

to remember this use the third letter in each word, e.g seCant = Cos | coTangent= Tan | coSecant = Sin

[HDitzzDH]

I am very familiar with sin, cos, tan and their inverses, however the cot, csc, sec is something we've never even brought up in school.

[jackiemoon]

thank you sal, never cease to amaze me how quick your videos are to clear up confusion

[ferassaffar]

what's the point of CSC, SEC and COT if SIn, Cos and Tan can do the same thing ?

[jentrost]

This was REALLY helpful! I'll be coming here for all my math needs!

[yasmineabdullah]

Thank you for the amazing explanation! Helped alot! Much Appreciation! Jazak Allah khair

[anonymoussomeone]

Math teacher takes 1 hour to explain this 🙂

[gingivirus]

I am taking geometry online, and we just learned about cosecant, secant, and cotangent, but I had NO idea how to pronounce them so thank you so much !

[jessicacarrillo]

so it’s really just this easy 😀 this is all my ap calc teacher needed to tell me

[arainsimon]

Helped me a lot in IXL fastest way i learned

[SKY-sorc]

thanks soo much, this really helped me a lot:))

[wafflebiscuit]

The ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle)

[nomyeet]

so basically csc A is equivalent of 1/sin A?

[ap_Oweyn]

This is the sole reason why I will pass pre-calc

[saraqostahterra]

Okay, but was is sin (and the other words) actually? What's the meaning of it?
Note: not I'm not asking how to calculate it (opp/hyp), neither what is equal to it. I'm asking what it means in itself.

[CJandBP]

How are you so good at writing on a computer?! Thanks for the awesome video!

[akaBaye]

can I ask, what year did you guys learn his? what year is this supposed to be learnt

[technoultimategaming]

So

Csc = 1/sin
Sec = 1/cos
Cot = 1/tan

Why?

[unknownbeing]

But why have secant close can’t and cotangent if we have sine cosine and tangent? We have the numbers necessary to do one Of the three things( I’m assuming) and the secant cosecant and cotangent use the same numbers to get the same answer. It sounds a lot like useless information to memorize for the regents.

[himaniagnihotri]

thank you khan academy...Wonderful explanation!