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Question
Find the common difference 'd' of the following AP:
−1.2,−3.2,−5.2,−7.2
−1.2,−3.2,−5.2,−7.2
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Solution
−1.2,−3.2,−5.2,−7.2d=a2−a1=−3.2−(−1.2)=−3.2+1.2d=−2d=a3−a2=−5.2−(−3.2)=−5.2+3.2d=−2Here d is constant.∴ This is an Arithmetic Progression.
−1.2,−3.2,−5.2,−7.2
d=a2−a1=−3.2−(−1.2)=−3.2+1.2
d=−2
d=a3−a2=−5.2−(−3.2)=−5.2+3.2
d=−2
Here d is constant.
∴ This is an Arithmetic Progression.
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