Question
sin2 4˚ + sin2 6˚ +
sin2 8˚ + sin2 10˚ + ……… + sin2 86˚ =?Solution
sin 2 4˚ + sin 2 6˚ + sin 2 8˚ + sin 2 10˚ + ……… + sin 2 86˚ = (sin2 4˚ + sin2 86˚)+(sin2 6˚ + sin2 84˚) + .…. + (sin2 44˚ + sin2 46˚) = (sin2 4˚ + cos2 4˚)+(sin2 6˚ + cos2 6˚) + .…. + (sin2 44˚ + co2 44˚) {As sin (90˚ - θ) = cos θ} = (1)+(1) + .…. upto 21 times { As sin2 θ + cos2 θ= 1} = 21 ` ` ` ` ` ` ` ` ` ` ` `
What is a botnet typically used for?
Which component in IoT performs data preprocessing before sending it to the cloud?
What is a confusion matrix used for?
Which technique is used to reduce dimensionality while preserving variance?
What does underfitting indicate?
Which layer of IoT focuses on transmitting data between devices and servers?
Which of the following is an example of an IoT application in healthcare?
Which of these is a parametric algorithm?
What is overfitting?
Which protocol is lightweight and widely used for IoT messaging?
