Question

Q.2 The value of 9 square -1 is equal to.
1) 81. 1080 1) 79. iv) none of these










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Answer 1

Answer:

iv) None of these

Step-by-step explanation:

∴ $9^{2} =81\\9^{2}-1=81-1 = 80$

∴The correct option is iv) None of these

ﾑ尺ﾉムﾑｲの

Answer 2

Answer:

none of the above. mark me as a brain lesst