NCERT Solutions of Introduction to Trigonometry Class 10
<< NCERT Solution of Exercise 8.4 (Part - I)THEOREM 1: >>

Introduction to Trigonometry

NCERT Solution of
Exercise 8.4 (Part - II)

Question 5 - Prove the following identities, where the angles involved are acute angles for which the expressions are defined.

class ten math trigonometry ncert solution19 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution20 of Exercise 8.4

LHS = RHS proved

class ten math trigonometry ncert solution21 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution22 of Exercise 8.4
class ten math trigonometry ncert solution23 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution24 of Exercise 8.4
class ten math trigonometry ncert solution25 of Exercise 8.4
class ten math trigonometry ncert solution26 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution27 of Exercise 8.4

using the identity class ten math trigonometry ncert solution28 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution29 of Exercise 8.4

After dividing numerator and denominator by sin A, we get

class ten math trigonometry ncert solution30 of Exercise 8.4

After multiplying with [cotA (1-cosecA)] in numerator and denominator both we get

class ten math trigonometry ncert solution31 of Exercise 8.4
class ten math trigonometry ncert solution32 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution33 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution34 of Exercise 8.4
class ten math trigonometry ncert solution35 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution36 of Exercise 8.4
class ten math trigonometry ncert solution37 of Exercise 8.4

Hence; LHS = RHS proved

class ten math trigonometry ncert solution38 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution39 of Exercise 8.4

Hence; LHS = RHS proved

class ten math trigonometry ncert solution40 of Exercise 8.4

Solution:

class ten math trigonometry ncert solution41 of Exercise 8.4
class ten math trigonometry ncert solution42 of Exercise 8.4

Hence; LHS = Middle Term = RHS proved


   
NCERT Solutions of Introduction to Trigonometry Class 10
<< NCERT Solution of Exercise 8.4 (Part - I)THEOREM 1: >>

Introduction to Trigonometry will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.