Mathematics
Assertion (A) : (70 + 20) (70 - 20) = 0.
Reason (R) : Any number raised to the power zero (0) is always equal to 1.
Both A and R are correct, and R is the correct explanation for A.
Both A and R are correct, and R is not the correct explanation for A.
A is true, but R is false.
A is false, but R is true.
Exponents
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Answer
Using the property:
⇒ a0 = 1 for any a ≠ 0
Thus, any number raised to the power zero (0) is always equal to 1.
So, reason (R) is true.
According to assertion : (70 + 20)(70 - 20) = 0
Solving L.H.S. of the above equation :
⇒ (70 + 20)(70 - 20)
⇒ (1 + 1)(1 - 1)
⇒ 2 x 0
⇒ 0
Since, L.H.S. = R.H.S.
So, assertion (A) is true and reason clearly explains assertion.
Hence, option 1 is the correct option.
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