If tanA * tan35 degree=1
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Step-by-step explanation:
Tan 45 = (tan 35 + tan 10) / (1 - tan 35 * tan 10)
1 - tan 35 * tan 10 = tan 35+ tan 10 (tan 45 = 1)
tan 35 + tan 10 + tan 35 * tan 10 = 1 prove
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