what is the value of tan(45°+A).tan(135°+A)
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tan (45+A).tan (135+A)
=tan(45+A).tan [90+(45+A)]
=tan (45+A). [-cot (45+A)]
= - tan (45+A).cot (45+A)
= -1
=tan(45+A).tan [90+(45+A)]
=tan (45+A). [-cot (45+A)]
= - tan (45+A).cot (45+A)
= -1
thotasrilakshmi24:
gud keep it up nd i got d same ans
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