Holla user.
Have an attention please
Can anyone tell me about the short summary of trigonometric function with all its identities and formulae.
One example to
No sparm answer
Fast plz I need it
preritsingh777:
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I hope it's Helpful for you.....
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Hey aashii.. here is ur answer.....
TRIGNOMETERY
1 st Identity
Sin ( 90 - Q ) = Cos Q
PROVE =
As we know Sin Q = P/h
And in Figure
P = BC
and
H = AC
And Q = theta
So ,
Sin ( 90 - Q ) = BC/AC = Equation 1
AND COS Q
= BC/AC - Equation 2
From Equation 1 & 2
Sin ( 90 - Q ) = Cos Q
PROVED
2 = IDENTITY
Tan ( 90 - Q ) = Cot Q
PROVE
Tan ( 90 - Q ) = BC/AB - Equation 1
From Figure
Cot Q = BC/AB - Equation 2
From
Equation 1 and 2
Tan ( 90 - Q ) = Cot Q
PROVED
3 = IDENTITY
Cot ( 90 - Q ) = tan Q
PROVE
From figure
Cot ( 90 - Q ) = AB/BC - Equation 1
Tan Q = AB/BC - Equation 2
From equation 1 & 2
Cot ( 90 - Q ) = tan Q
........
1) sin^2 teta +cos^2 teta = 1
2) 1+ tan^ 2 teta = sec^2 teta
3) tanteta = sin ÷ cos
4) cot= cos ÷sin
5) 1+ cot ^2 = cosec ^2
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