
Ex 8.3
Ex 8.3, 1 (ii) Important Deleted for CBSE Board 2022 Exams
Ex 8.3, 1 (iii) Deleted for CBSE Board 2022 Exams
Ex 8.3, 1 (iv) Important Deleted for CBSE Board 2022 Exams
Ex 8.3, 2 (i) Important Deleted for CBSE Board 2022 Exams
Ex 8.3, 2 (ii) Deleted for CBSE Board 2022 Exams
Ex 8.3, 3 Deleted for CBSE Board 2022 Exams
Ex 8.3, 4 Deleted for CBSE Board 2022 Exams
Ex 8.3, 5 Important Deleted for CBSE Board 2022 Exams
Ex 8.3, 6 Important Deleted for CBSE Board 2022 Exams
Ex 8.3, 7 Deleted for CBSE Board 2022 Exams
Last updated at Aug. 11, 2021 by Teachoo
Ex 8.3, 1 Evaluate : (i) sin 18 /cos 72 sin 18 /cos 72 = sin 18 /cos (90 18 ) = sin 18 /(sin 18 ) = 1