Draw the graph of `tan (x+pi/4)` as x increases from : `-pi/4 to (7pi)/4 , x ne pi/4 ,(5pi)/4 `.

Draw the graph of tan x as x increases from 0 to 2pi and use it to find a solution of the equation tan x = 1, where 0 < x < pi .

Sketch the graph of y=cos(x-pi/4)dot

Draw the graph of the following : y = 3sin (2x+pi/6) , -pi lexle pi .

Prove that cos^-1 ((sin x + cos x )/(sqrt2)) = x - (pi/4), (pi/4) le x le ((5pi)/4)

The possible values of theta in (0,pi) such that sin (theta) + sin (4theta) + sin(7theta) = 0 are (1) (2pi)/9 , i/4 , (4pi)/9, pi/2, (3pi)/4 , (8pi)/9 (2) pi/4, (5pi)/12, pi/2 , (2pi)/3, (3pi)/4, (8pi)/9 (3) (2pi)/9, pi/4 , pi/2 , (2pi)/3 , (3pi)/4 , (35pi)/36 (4) (2pi)/9, pi/4, pi/2 , (2pi)/3 , (3pi)/4 , (8pi)/9

Sketch the graphs of the following function : y= cos (x-pi/4) .

Differentiate (sin x - cos x)^(sin x -cos x) , (-pi)/(4) lt x lt (3pi)/4

Find the value of sin(pi/4)cos(pi/6) + cos(pi/4)sin(pi/6)

The function f(x)=sin^4x+cos^4x increasing if 0