# RS Aggarwal Solutions Class 10 Chapter 7 Trigonometric Identities

In this chapter, we provide RS Aggarwal Solutions for Class 10 Chapter 7 Trigonometric Identities Maths for English medium students, Which will very helpful for every student in their exams. Students can download the latest RS Aggarwal Solutions for Class 10 Chapter 7 Trigonometric Identities Maths pdf, free RS Aggarwal Solutions Class 10 Chapter 7 Trigonometric Identities Maths book pdf download. Now you will get step by step solution to each question.

### RS Aggarwal Solutions Class 10 Chapter 7 Trigonometric Identities

Question 1.
Solution:
(i) (ii) (iii) (iv) (v) (vi) Question 2.
Solution:
(i)  LHS = cos81° – sin9°
= cos(90° -9°)- sin9° = sin9° – sin9°
= 0 = RHS

(ii) LHS = tan71° – cot19°
=tan(90° – 19°) – cot19° =cot19° – cot19°
=0 = RHS

(iii) LHS = cosec80° – sec10°
= cosec(90° – 10°) – sec(10°)
= sec10° – sec10° = 0
= RHS

(iv) LHS = cosec72° − tan18° (v) LHS = cos75° + cos15° (vi) LHS = tan66° − cot24° (vii) LHS = sin48° + sin42° (viii) LHS = cos57° − sin33° (ix) LHS = (sin 65° + cos 25°)(sin 65° − cos 25°) More Resources

Question 3.
Solution:
(i) (ii) (iii) (iv) (v) (vi) Question 4.
Solution:
(i) (ii) (iii) (iv) (v) Question 5.
Solution:
(i) (ii) (iii) (iv) (v) (vi) (vii) Question 6.
Solution:
(i) (ii) (iii) (iv) (v) Question 7.
Solution:
(i)  LHS = sin (70° + θ) − cos (20° − θ) (ii)  LHS = tan (55° − θ) − cot (35° + θ) (iii)  LHS = cosec (67° + θ) − sec (23° − θ) (iv)  LHS = cosec (65 °+ θ)  sec  (25° −  θ) − tan (55° − θ) + cot (35° + θ) (v)  LHS = sin (50° + θ ) − cos (40° − θ) + tan 1° tan 10° tan 80° tan 89° Question 8.
Solution:
(i) (ii) (iii) (iv) Question 9.

Solution: Question 10.

Solution: Question 11.

Solution: Question 12.

Solution: Question 13.

Solution: Question 14.

Solution: Question 15.

Solution: All Chapter RS Aggarwal Solutions For Class 10 Maths

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All Subject NCERT Exemplar Problems Solutions For Class10

All Subject NCERT Solutions For Class 10

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