evaluate
sin^2 10°/cos^2 25°+
sin^2 65°/cos^2 65°+ 4sin 70°/cos 20°
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Answer:
helo guys its your naswer
Step-by-step explanation:
The value of sin^(2)65^(@)+sin^(2) 25^(@)+cos^(2)35^(@)+cos^(2)55^(@) is. ... Evaluate: (i) `(sin^2 63o+sin^2 27o. play. 3:33.
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Its answer is 1 + 1+ 4 = 6.
You have to rectify the problem also, in first term in denominator its cos^2 80• instead of cos^2 65.
Use concept of complementary angles of trigonometry.
sin(90 - x) = cosx
cos(90 - x) = sinx
You have to rectify the problem also, in first term in denominator its cos^2 80• instead of cos^2 65.
Use concept of complementary angles of trigonometry.
sin(90 - x) = cosx
cos(90 - x) = sinx
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