Tuesday, 14 January 2020

TRIGONOMETRY - PART - 22 - TRIGONOMETRICAL RATIOS - 100 PROBLEMS

ICSE MATHS CLASS 9 – PAGE -294
EXERCISE – 22(B) – PROBLEM – 13
Given; 17 cosꝊ = 15;
find the value of tanꝊ + 2 secꝊ


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