22. If sinѲ + cosѲ = √2cos (90˚ - Ѳ), determine cotѲ
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sinΘ + cosΘ =√2 cos(90-Θ)
=√2 sinΘ
=> cos Θ =(√2-1)sinΘ
cot Θ = cosΘ ÷ sin Θ
= ( √2-1 ) sinΘ ÷ sin Θ
= √2-1
=√2 sinΘ
=> cos Θ =(√2-1)sinΘ
cot Θ = cosΘ ÷ sin Θ
= ( √2-1 ) sinΘ ÷ sin Θ
= √2-1
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