Find sin(61) without a calculator.
Find sin(61) without a calculator.
Ayesha Khan , 11 Years ago
Grade 12th pass
Trigonometry> Find sin(61) without a calculator....
1 Answers
Ravi
You can do this by approximation method from the chapter Application of Derivatives.
f(x)=Sin x
x= 60
x+del.x=61
f(x+del x)= Sin 61
dy/dx= [f(x+delx)-f(x)]/[delx]
Cosx=[f(x+delx)-f(x)]/[delx]
And find f(x+del.x) from the eqn so formed
f(x)=Sin x
x= 60
x+del.x=61
f(x+del x)= Sin 61
dy/dx= [f(x+delx)-f(x)]/[delx]
Cosx=[f(x+delx)-f(x)]/[delx]
And find f(x+del.x) from the eqn so formed
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