Tuesday 14 January 2020

TRIGONOMETRY - PART - 40 - TRIGONOMETRICAL RATIOS - 100 PROBLEMS

ICSE MATHS CLASS 9 – PAGE -294
EXERCISE – 22(B) – PROBLEM – 31
If 6 tan A – 5 = 0, find the value of:
5 sin A – cos A / 5 cos A + 9 sin A



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