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how to find the value of xin equations such asacos x + bsin x ?Is itx=sin-1[( a2+b2)1/2tan-1(b/a)]?

Pavan Karri , 6 Years ago

Grade 12

3 Answers

beena chandran

Last Activity: 6 Years ago

the valu

beena chandran

Last Activity: 6 Years ago

how to find the value of x in equations such as

acos x + bsin x ?

Is it x=sin^-1[( a²+b²)^1/2tan^-1(b/a)] ?

the answer is very simple

the value of x is the square root of sum of squares of a and b

x=(a^2+b^2)^1/2

Soumendu Majumdar

Last Activity: 6 Years ago

Dear Student,

a cos x + b sin x must be equal to a constant or some other expression only then can you find out the value of x, hope you understand what I mean, cause’ for an expression like a cos x + b sin x, you put any value of x and you get a different result, so you need to know the result before you think of finding the value of x.

Hope it helps!