Imp. Questions Trigonometry


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Imp. Questions Trigonometry

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3 cot A = 4 | Check if (1−tan²A)/(1+tan²A) = cos²A - sin²A | Trigonometry Numerical

Question: If 3 cot A = 4, check whether (1−tan²A)/(1+tan²A) = cos²A - sin²A. Consider the following triangle ABC, where angle B = 90°

3 cot A = 4 | Check if (1−tan²A)/(1+tan²A) = cos²A - sin²A | Trigonometry Numerical
4 min read
15 cot A = 8 | Find the value of sin A and sec A | Trigonometry Numerical

Question: Given 15 cot A = 8, find sin A and sec A. In problems like these, make sure you know all the formulas mentioned in the notes

Includes bonus question
15 cot A = 8 | Find the value of sin A and sec A | Trigonometry Numerical
2 min read
PQ = 12cm and PR = 13cm | Find tan P - cot R | Trigonometry Numerical

Question: Given a right triangle PQR, where m∠Q = 90°, PQ = 12 cm and PR = 13 cm, find the value of tan P - cot R.

2 bonus tips
PQ = 12cm and PR = 13cm | Find tan P - cot R | Trigonometry Numerical
4 min read

Others


Others

cot θ = 7/8 | Find all other trigonometric ratios | Trigonometry Numerical

We have already studied the basics of Trigonometry and the formulas of Trigonometry in the previous notes about Trigonometry. If you haven't read the notes, read it now

cot θ = 7/8 | Find all other trigonometric ratios | Trigonometry Numerical
3 min read
Trigonometry Formulas | sin θ, cos θ, tan θ, cosec θ, sec θ, cot θ | Trigonometry Basics

In this notes we'll cover topics about Trigonometry. We'll study about what is Trigonometry, why one should study Trigonometry and then about the basic formulae of Trigonometric Ratios. Trigonometry is the study of triangles. More specifically right angled triangles.

formulas
Trigonometry Formulas | sin θ, cos θ, tan θ, cosec θ, sec θ, cot θ | Trigonometry Basics
7 min read