It is an exclusive e-Learning Blog that has been dedicated to help keen learn students to boost their knowledge in different subjects.
Trigonometry Unit Circle
ASTC Diagram
Articles by "Trigonometry"
Showing posts with label Trigonometry. Show all posts
It is an exclusive e-Learning Blog that has been dedicated to help keen learn students to boost their knowledge in different subjects.
Trigonometrical ratios of associated and compound angles
01. (i) sin (A+B) = sinA cosB + cosA sinB(ii) sin (A-B) = sinA cosB - cosA sinB
02. (i) cos (A+B) = cosA cosB - sinA sinB
(ii) cos (A-B) = cosA cosB + sinA sinB
03. (i) tan (A+B) = (tanA + tanB) / (1 - tanA tanB)
(ii) tan (A-B) = (tanA - tanB) / (1 + tanA tanB)
04. (i) cot (A+B) = (cotA cotB - 1) / (cotB + cotA)
(ii) cot (A-B) = (cotA cotB + 1) / (cotB - cotA)
05. 2 sinA cosB = sin (A+B) + sin (A-B)
06. 2 cosA sinB = sin (A+B) - sin (A-B)
07. 2 sinA sinB = cos (A-B) - cos (A+B)
08. 2 cosA cosB = cos (A+B) + cos (A-B)
09. sinC + sinD = 2 sin(C+D)/2 cos (C-D)/2
09. sinC - sinD = 2 cos(C+D)/2 sin (C-D)/2
It is an exclusive e-Learning Blog that has been dedicated to help keen learn students to boost their knowledge in different subjects.
Some common angles: Trigonometry
The following table shows the conversions for some common angles:
Reciprocal Identities:
Quotient Identities:
Pythagorean Identities:
Co-Function Identities:
Even-Odd Identities:
Sum-Difference Formulas:
Double Angle Formulas:
Sum-to-Product Formulas:
Product-to-Sum Formulas:
Half Angle Formulas:
To know more, please read the below image carefully:
Subscribe to:
Posts (Atom)