If A + B =45°, the value of (cosAcosB – sinA sinB) is:
(a) 3 / 2
(b) 0
(c) 1/ 2
(d) None of these
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If A + B =45°, the value of (cosAcosB – sinA sinB) is:
(a) 3 / 2
(b) 0
(c) 1/ 2
(d) None of these
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