Sec 90 - How to calculate the Value of Sec 90?
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![](https://cdn1.byjus.com/wp-content/uploads/2021/10/Sec-90-value1.png)
Sec 90 value can be calculated using other trigonometric functions like Cosine. Sec x = 1/cos x. The value of sec 90 is undefined. For more trigonometry angle, register with BYJU
Sec 90 value can be calculated using other trigonometric functions like Cosine. Sec x = 1/cos x. The value of sec 90 is undefined. For more trigonometry angle, register with BYJU'S.
![](https://toppr-doubts-media.s3.amazonaws.com/images/8409200/025e5ba3-cea1-402c-b05e-dbfe07d2bfbe.jpg)
Without using trigonometric tables, the value of ( cot theta tan
![](https://cdn.numerade.com/ask_images/66d173b483194c4b858a453c52115c25.jpg)
SOLVED: Find the exact value of the expression. Do not use a
![](https://physicscatalyst.com/article/wp-content/uploads/2019/01/trigonometric-ratios-tables-1.png)
Trigonometric table from 0 to 360 (cos -sin-cot-tan-sec-cosec)
![](https://useruploads.socratic.org/fJaLgEpeSBClh16XFAbY_B43AE892-2414-41AA-BC35-EAD7E55D0B94.jpeg)
How do you find the exact value of sin(-90)?
![](https://useruploads.socratic.org/yBbE4WwbQ3i7oJBifvov_1F3694B1-FA83-4D59-BC2C-FF42C74100BB.png)
How do you find the exact value of sin(-90)?
![](https://images.collegedunia.com/public/image/83421034c99f7da29b5323704c4f5357.png)
Sec 90°: Calculation, Sec Inverse and Formulas
![](https://cdn.britannica.com/97/69697-050-BADA0D81/definitions-relationships-functions-sin-cos-example-A.jpg?w=400&h=300&c=crop)
cdn./97/69697-050-BADA0D81/definitio
![](https://shadhickmantrigonometry.weebly.com/uploads/3/0/7/0/30709179/5758972_orig.jpg)
sec(90-x)=csc(x) - Trigonometry
![](https://d138zd1ktt9iqe.cloudfront.net/media/seo_landing_files/cofunction-identities-1645791025.png)
Cofunction Identities - Formula, Proof, Application, Examples
![](https://preview.redd.it/hs-precalc-how-do-you-subtract-it-from-90-degrees-v0-61og1xrjb2hc1.jpeg?width=640&crop=smart&auto=webp&s=da6d35c2c2cf91edff1d3fe953a6217d58427cfc)
HS precalc] How do you subtract it from 90 degrees? : r/HomeworkHelp
![](https://i.pinimg.com/736x/42/ee/f3/42eef344d62d8866a69a7f9ae3dcdf72.jpg)
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