If tanA= 1 ten sin square A-cos squareA is equal to
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Answer:
tan A =1
adjecent side=1
opposite side=1
hypotheses side=√(1)²+(1)²=√2
=>10 sin ²A - cos ²A
=>10(1/√2)²-(1/√2)²
=>10(1/2)-1/2
=>10/2-1/2
=>9/2
10 sin ²A - cos ²A=9/2
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