Evaluate 3×(9)52×(9)−12
Evaluate :
(i) (−5)∘(ii) 8∘+4∘+2∘(iii) (8+4+2)∘ (iv) 4x∘(v) (4x)∘(vi) [(103)∘]5(vii) (7x∘)2(viii) 9∘+9−1−9−2+912−9−12
Evaluate : 2×(9×3+9)−4