Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Ex 8.3

Ex 8.3, 1

Ex 8.3, 2 Important

Ex 8.3, 3 (i) [MCQ]

Ex 8.3, 3 (ii) [MCQ] Important

Ex 8.3, 3 (iii) [MCQ] Important You are here

Ex 8.3, 3 (iv) [MCQ]

Ex 8.3, 4 (i) Important

Ex 8.3, 4 (ii)

Ex 8.3, 4 (iii) Important

Ex 8.3, 4 (iv) Important

Ex 8.3, 4 (v) Important

Ex 8.3, 4 (vi)

Ex 8.3, 4 (vii) Important

Ex 8.3, 4 (viii)

Ex 8.3, 4 (ix) Important

Ex 8.3, 4 (x)

Question 1 (i) Important Deleted for CBSE Board 2024 Exams

Question 1 (ii) Deleted for CBSE Board 2024 Exams

Last updated at Aug. 16, 2023 by Teachoo

Ex 8.3, 3 Choose the correct option. Justify your choice. (iii) (sec A + tan A) (1 β sin A) sec A (B) sin A (C) cosec A (D) cos A (sec A + tan A) (1 β sin A) = (π/(πππ π¨)+πππβ‘π¨/πππβ‘γ π¨γ ) (1 βsinβ‘γ π΄)γ = ((1 + sinβ‘γ π΄)γ)/cosβ‘γ π΄γ Γ(1 βsinβ‘γ π΄)γ = ((1 + sinβ‘γ π΄)(1 βγ sinγβ‘γ π΄)γ γ)/cosβ‘γ π΄γ = ((1^2 βγ sin2γβ‘γ π΄)γ)/cosβ‘γ π΄γ = ((π βγ π¬π’π§πγβ‘γ π¨)γ)/cosβ‘γ π΄γ = (ππππ π¨)/cosβ‘γ π΄γ = cos A So, the correct answer is (d)