please solve this maths (11 no.)the marked one
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HeY !!!
tanA + cotA = 5 ------1)
using formula like that
a² + b² = (a + b) ² - 2ab
similarly ,tan²A +cot²A = (tanA + cotA)² - 2tanA×cotA
tan²A + cot²A = 5² - 2tanA×cotA
tan²A + cot²A = 25 - 2
tan²A + cot²A = 23 Answer
*****************************************
Hope it helps you !!!
#Rajukumar111
tanA + cotA = 5 ------1)
using formula like that
a² + b² = (a + b) ² - 2ab
similarly ,tan²A +cot²A = (tanA + cotA)² - 2tanA×cotA
tan²A + cot²A = 5² - 2tanA×cotA
tan²A + cot²A = 25 - 2
tan²A + cot²A = 23 Answer
*****************************************
Hope it helps you !!!
#Rajukumar111
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