A right triangle has base = 8 cm and height = 6 cm, with acute angle A at the base (opposite the height). Using the figure, verify sin2 A + cos2 A and give its value.
Class 10Trigonometric IdentitiesTrigonometry
A2
B0
C1
D3
Step-by-Step Solution
Hypotenuse = 82+62=10. sin A=106, cos A=108. sin2 A + cos2A=10036+10064=100100=1.
Answer: C) 1
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