Question

y= sin x° + cos x° find dy/dx​

Answer 1

Answer:

∴ dy/dx = π(cos x° - sin x°)

Step-by-step explanation:

Given,

y = sin x° + cos x°

  = sin πx + cos πx

dy/dx = ?

Now,

dy/dx = d(sin πx + cos πx)/dx

          = d(sin πx)/dx + d(cos πx)/dx

          = d(sin πx)/dπx×dπx/dx + d(cos πx)/dπx×dπx/dx

          = πcos πx - πsin πx

          = π(cos x° - sin x°)