2m−2m−1−4=02^m-2^{m-1}-4=02m−2m−1−4=0ആയാൽ m ൻ്റെ വില കണ്ടെത്തുക A27B6C3D4Answer: C. 3 Read Explanation: 2m−2m−1−4=0 ⟹ 2m−2m−1=42^m-2^{m-1}-4=0 \implies2^m-2^{m-1}=42m−2m−1−4=0⟹2m−2m−1=42m−1(2−1)=4 ⟹ 2m−1=222^{m-1}(2-1)=4\implies2^{m-1}=2^22m−1(2−1)=4⟹2m−1=22m−1=2 ⟹ m=3m-1=2\implies{m=3}m−1=2⟹m=3 Read more in App
