Xcos A =1 and tanA=y , then find the value of x^2-y^2
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Hi Mate!!!
x = Sec ( A ) and y = Tan ( A )
x² - y² = Sec² ( A ) - Tan² ( A )
x² - y² = 1
bcoz 1 = Tan² ( x ) - Sec² ( x )
x = Sec ( A ) and y = Tan ( A )
x² - y² = Sec² ( A ) - Tan² ( A )
x² - y² = 1
bcoz 1 = Tan² ( x ) - Sec² ( x )
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