Class 10 ICSE Maths Trigonometrical Identities Important Questions
Here we provide Class 10 Maths important notes,board questions and predicted questions with Answers for chapter Trigonometrical Identities. These important notes,board questions and predicted questions are based on ICSE board curriculum and correspond to the most recent Class 10 Maths syllabus. By practising these Class 10 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 10 Board examinations.
Class 10 ICSE Trigonometrical Identities Important Questions
Trigonometrical Identities Important Questions
Q1
(1+tan2π)(1-sinπ)(1+sinπ)=1
solutions
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/1.jpg)
Q2
2 cos2π +
2/
(1+πππ‘2π)
=2
solutions
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/2.jpg)
Q3
(sin π β cosec π) (cos π β sec π) = 1/
π‘πππ+πππ π
solutions
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/3.jpg)
Q4
Prove that :
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/4ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/4.jpg)
Q5
Prove that :
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/5ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/5.jpg)
Q6
Prove that :
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/6ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/6.jpg)
Q7
Prove that : (cosec A βsin A)(sec A β cos A)= 1/
(tan π΄+cot A)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/7ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/7.jpg)
![](pre-class-10-maths-icse/trignometry/imp-ques/7-1.jpg)
Q8
Prove that
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/8ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/8.jpg)
![](pre-class-10-maths-icse/trignometry/imp-ques/8-1.jpg)
Q9
Prove that
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/9ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/9.jpg)
Q10
Prove that:
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/10ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/10.jpg)
Q11
Prove that
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/11ques.jpg)
solutions
![](pre-class-10-maths-icse/trignometry/imp-ques/11.jpg)
Q12
Prove that:
(i)
(ii)
solutions
(i)
![](pre-class-10-maths-icse/trigonometry/impques/q1.jpg)
(ii)
![](pre-class-10-maths-icse/trigonometry/impques/q2.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img12.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img12-1.jpg)
Q13
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q3.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img13.jpg)
Q14
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q4.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img14.jpg)
Q15
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q5.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img15.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img15-1.jpg)
Q16
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q6.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img16.jpg)
Q17
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q7.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img17.jpg)
Q18
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q8.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img18.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img18-1.jpg)
Q19
Prove that:
(i)
(ii)
(iii)
solutions
(i)
![](pre-class-10-maths-icse/trigonometry/impques/q9.jpg)
(ii)
![](pre-class-10-maths-icse/trigonometry/impques/q10.jpg)
(iii)
![](pre-class-10-maths-icse/trigonometry/impques/q11.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img19.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img19-1.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img19-2.jpg)
Q20
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q12.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img20.jpg)
Q21
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q13.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img21.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img21-1.jpg)
Q22
Prove that:
solutions
![](pre-class-10-maths-icse/trigonometry/impques/q14.jpg)
solutions
![](pre-class-10-maths-icse/trigonometry/impques/img22.jpg)
![](pre-class-10-maths-icse/trigonometry/impques/img22-1.jpg)
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