Trigonometry:
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The first letter of every word can be used to remember the 3 basic trigonometric ratios of sine, cosine & tangent.
Opposite side / Hypotenuse = Sin
Adjacent side / Hypotenuse = Cos
Opposite side / Adjacent side = Tan
Cotangent is complementary tangent. So reciprocal of Cot is Tan.
Reciprocal of Secant is Cosine.
Reciprocal of Cosec is Sine.
C & C do not go together.
so also S & S.
In right angled triangle,
(1) Side opposite to 90 deg. is longest and it is called Hypotenuse. In short hyp.
In triangle ABC, if /_ B = 90 deg, then
AB sq + BC sq = AC sq
(2) Note letter B gets repeated. angle B is right angle.
(3) On R.H.S. B disappears and remaining letters get connected.
Old Hindustani Singer Adores His Collection Of Albums, Tunes.
The first letter of every word can be used to remember the 3 basic trigonometric ratios of sine, cosine & tangent.
Opposite side / Hypotenuse = Sin
Adjacent side / Hypotenuse = Cos
Opposite side / Adjacent side = Tan
Cotangent is complementary tangent. So reciprocal of Cot is Tan.
Reciprocal of Secant is Cosine.
Reciprocal of Cosec is Sine.
C & C do not go together.
so also S & S.
In right angled triangle,
(1) Side opposite to 90 deg. is longest and it is called Hypotenuse. In short hyp.
In triangle ABC, if /_ B = 90 deg, then
AB sq + BC sq = AC sq
(2) Note letter B gets repeated. angle B is right angle.
(3) On R.H.S. B disappears and remaining letters get connected.
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