(Sin^2 + cos^2) /cos^2 simplify

Step-by-step explanation:

we have the expression

we know that

----> trigonometric identity

and

so

substitute in the expression

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

#faazmessi

a) 0

step-by-step explanation:

i^413 x i^0 = 0 as any number multiplied by a zero is

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