Question

find the value : sin²30 + cos²30 + seç²0 - tan²0​

Answer 1

.........................

Answer 2

Answer:We know sin 30=1/2 , cos 30=$\frac{\sqrt{3} }{2}$

tan0 = 0 , sec0= 1

Now, sin²30 + cos²30 + seç²0 - tan²0​= $\frac{1}{2}^{2} + \frac{\sqrt{3} }{2} ^{2} +1+0$

=$\frac{1}{4} +\frac{3}{4} +1$

=$\frac{1+3+4}{4} = \frac{8}{4}$

=2

here is your answer 2

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