In - ABC- right angled at B- if tan A -1 - -3 then the value of sin A -cos A isA- 2-3-1B- 1-2C- -3-1-2D- -3-2

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Range of Trigonometric Ratios from 0 to 90 Degrees

In Δ ABC, rig...

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In ∆ ABC, right angled at B, if tan A = ¹/_√3 then the value of sin A + cos A is

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Δ A B C

\frac{1}{2}

\frac{\sqrt{3}}{2}

In ∆PQR, right angled at Q and ∠P = ∠R, then sin P cos R + cos P sin R is

s i n A + s i n^{2} A = 1

(c o s^{2} A + c o s^{4} A)

1

\frac{1}{2}

2

3

s e c A = \frac{2}{\sqrt{3}},

\frac{t a n A}{c o s A} + \frac{1 + s i n A}{t a n A}

sin A + sin B + sin C = 0

cos A + cos B + cos C = 0

sin (\frac{A - B}{2})

(where A, B, C \in [0, 2 π])

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