Range of Trigonometric Ratios from 0 to 90 Degrees
Refer to the ...
Question
Refer to the triangle given in figure.
secC is 3√2m, m is
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Solution
Given, △ABC, A perpendicular from B on AC, let it cut AC at D, such that∠BDA=∠BDC=90∘ AD=3 BD=4 BC=12 In △ABD, AB2=BD2+AD2 AB2=32+42 AB=5 In △BCD BC2=CD2+BD2 122=CD2+42 CD2=128 CD=8√2 Now, secC=HP=128√2=32√2