• 9 years ago
Lesson#7
Question No. 8
Q8: Prove that:
(iii): ∆=4 .cos⁡/2 cos⁡/2 cos⁡/2
(ii): =.tan⁡/2 tan/2 tan/2
(i): ∆=^2 cot⁡/2 cot⁡/2 cot⁡/2
Application of Trigonometry
Chapter No 12
Exercise No 12.8
Mathematics
part 1

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