Chapter 5 – Trigonometric Functions Exercise Ex. 5.1

Prove that cosθ(tanθ+2)(2 tanθ+1)=2 secθ+5 sinθ

## Chapter 5 – Trigonometric Functions Exercise Ex. 5.2

## Chapter 5 – Trigonometric Functions Exercise Ex. 5.3

## Chapter 5 – Trigonometric Functions Exercise Ex. 5VSAQ

Write the maximum and minimum values

of.

Write the maximum and minimum values of.

Write the maximum value of.

If, then write the value of .

If, then write the value of.

If, then write the value of.

If, then write the value of.

If, then write the value of.

The

maximum value for sin(x) is 1 for all x.

.

A circular wire of radius 15cm is

cut and bent so as to lie along the circumstance of a loop of radius 120cm.

Write the measure of the angle subtended by it at the centre of the loop.

The radius of circular wire is 15 cm.

The circumference of circular wire is.

The radius of loop is 120 cm.

The circumference of loop is.

The circumference of a circle covers

all the quadrants of the circle i.e. the angle subtended by it at the centre is.

The circular wire is cut and bent so as

to lie along the circumstance of the loop.

So, circumference of circular wire

covers ^{ }

of

the circumference of the loop.

Therefore the angle subtended by the

circular wire is

.

^{ }

Write the value of

Write the value of.

If, then write the value of.

If tan A + cot A=4,

then write the value of

tan^{4}A + cot^{4}A.

Write the least value of.

So

the least value of is 2.

If, then write the smallest interval in which the

value of *x*

lie.

If, then write the value of .